John you are fortunate to have such a yard, although the tennis court does aspect as a divider breaking up the space, I think this creates an opportunity to create garden zones or rooms. Intimate garden spaces can be individual enough and still be integrated into a larger footprint. Your garden perhaps may be viewed from different windows, and have different aspects, therefore will have different requiremnts of sun, shelter etc.
As the second picture appears to have a shed or structure, and looks more of a utility space, I would obstruct the view from the court, by planting a Boston ivy to cover the fencing, providing a delicate hanging foliage wi ever changing colours of reds and greens. I would do the same on the opposite fencing that overlooks the main lawn area, although I would create a large window effect by clipping or restraining the creeper from a large square in the centre fencing section.
Tis will create a room with a view in the foreground, and with effective and clever planting, lighting and design elements, you will create an interesting viewpoint that will direct interest into the yard beyond the court.
In the background, the timber fence I would plant your murray a hedge, so the small blooms will soften the look of the fence, paint it a dark colour, like domino by dulux so the foliage stands out against it, and gives an illusion of a deeper boundary.
In front of that, centre to your created window in your fencing, place either a sculptural element, in the form of an urn, a formal topiary or statue, perhaps a small water feature with lighting, so it extends the perspective yet again.
With the green hedges now creating the walls of your garden room, plant your chosen iceberg roses in front of that, and some informal plantings below.
I suggest a bench to watch a match or two, and utilize the other garden Rea to house things such as your patio furniture.
Garden rooms don't necessarily make a space smaller, rather they may invite you to meander through garden rooms with beautiful elements and relaxing places to sit.
I would also like the look of manchurian pear trees along the fencing if you don't like the idea of a creeper.

Thank you mldesign0401. If I was to plant a creeper, what would you think of Star Jasmine on the tennis court fence? Also, I could cover the shed it Star Jasmine? Ornamental pears grow very tall, but I assume you would say to pleach the ornamental pears maybe top 2 metres and keep max. height to maybe 3.6metres (same height as top of fence)? What about Murraya kept to maybe 1.8m next to the tennis court fence? Thanks again, I really appreciate your great ideas and assistance!

I like star jasmine, only that it requires a great deal more maintenance as in pruning and directing new growth moreso than something like Boston ivy or Virginia creeper. The jasmine flowers are lovely and the smell fills the air with springtime, however the two ivy creeperswill provide striking colour by contrast, so I guess whichever appeals to you will both do the trick. I do like a pleached hedge, because the valuable space below has the opportunity to be as lovely at ground level, although ornamental pears Can grow tall, it is easy to keep them at a particular height if you wish, I would also pleached to a height of around 1.5 so you still have a view beyond their trunks, if you went this way, the top would screen out, leaving the ground to seem part of a larger space.
With your murraya, you can fortunately tame them into narrow hedges, so the 1.8 will look fully enclosed, but you still have the ability to plant in front of this backdrop.
Good luck.

Having read your question and John's answer I would like to just add that whatever you decide to plant near the court, it should be evergreen. Murraya and Star Jasmine are lovely and each have their own distinctive perfume, but they both drop loads of flowers during spring/summer which I would think will blow across the surface of the court and you would need to clean the court regularly. Very time consuming and tedious. Perhaps you can find a nice climber that can be topiaried (sorry about the spelling) and as John suggests, add some structural elements such as large urns, or a water feature that would have a cooling effect or even introduce some architectural screens that seem to be popular these days. From the picture of the back of your house I would think quality would be a priority. So perhaps get a professional landscape architect in. The money spent on his time and ideas would be worthwhile if you want to enhance the area and make a statement.

In respect to growing a creeper up the tennis court fencing what kind of drainage / soil nutrients do these suggested creepers require? We are just putting in a tennis court fence and have little to no room for planting however it has been suggested that we could core holes every couple of metres and plant a creeper to train up the fence however we would have no irrigation out to the plants so in the first instance would need to water them regularly. The sub base for the court is a form of rubble and then the natural ground is beneath this (maybe 120mm). My question is would a creeper survive in such an environment whilst training to establish itself and what would be the best variety to plant?

It really isn’t that noticeable, Black is the perfect colour.
I would just do a bit of landscaping behind the fence to distract and then the fence will blend into the background.
Bit reluctant to cover with a creeper and create a lot of future maintenance.

Hi John,
What a great area, I would paint your fence and shed charcoal/black, by planting a creeper you are creating extra maintenance with leaf loss and flower fall but if you do the above suggestions are great, I think a hedge of viburnum would look gorgeous, pittosporum ‘golf ball’ makes a great hedge also, magnolia would add a stylish look... could look beautiful

If you decided on a hedge the viburnum ‘emerald lustre’ above has gorgeous shiny leaves and the new foliage is pinky bronze.