Have you done a search of pics for inspiration either here on Houzz or Pinterest?

On the side with the bins I would do a mass planting of Lomandra. You can buy it in tube stock and it will fill out nicely.

What do you already have planted on the other side? I’d under plant with something like pigface or myoporum. Both are ground covers that will spread and suppress weeds.

In the backyard you need to decide on the built elements first. Then we can help with plants.

Thanks for that. we had a look on Pinterest and to be honest, there are heaps of ideas but we struggle in making the ideas flow. we want it to make sense. Thats why we are trying to get other people ideas to help us out.

if this makes sense. What you have said is already very helpful, thank you. if you have any idea of trees we can plant as well would be great.

we found this as the fire place.

Some comments, I hope they are helpful.

1. Create a gravelled area for your fire pit. Laying a some sand, levelling off, a weed barrier and raking gravel is within the skill set of most handy people. Use treated timber for an edging to keep it neat. Buy a nice ready made steel fire pit. Buy some seating.
2. Your planting lacks a scheme. Without a scheme your yard will not look put together the way professional landscaping does. Every plant has to be chosen for a purpose (texture, height, colour, privacy etc).
3. You also have all your garden beds in a perimeter against the fence. That's fine for a starting point. But to make the place look inviting you need some garden beds in the yard too. Please avoid the common habit of putting shrubs in the middle of the lawn. It doesn't work well and also makes maintaining your lawn difficult. If you want to make say the entertaining area private from the kids play area a full garden bed is usually a better bet than just a shrub or two. By putting multiple shrubs of varying heights and a creeper in a larger section you create outdoor zones and properly define the area.
4. What you really need to do is measure your yard, draw in your house and all paths and then start drawing in the entertaining area, the kids play area, the veggie patch etc. You will probably have to play around with the layout for a while to come up with something you like and works. Trust me, doing this first will save you a lot off $$ on plantings that don't work and you want to remove later.
5. When you create garden beds do it with three heights. So something under 6" tall, something under 2ft tall and then something over 3ft. Not a definite rule but a good rule of thumb. By having multiple levels in your garden beds you create a more impactful and interesting garden. When gardens are meh, its usually because all the plantings are the same height and it looks flat.

Take a look at these gardens to see what I mean....

Alright this fire pit is obviously professionally done, but what you need to look at is how the fire pit is clearly separated from the rest of the yard. The seating creates an outdoor room feel. But also if you look behind the seating there is also a large garden bed behind it. Although the scheme isn't finished my bet is that some tall screening plants are likely to be planted there to create a more intimate mood and shade from summer sun. Having garden beds define a feature really works.

This is what I mean about having layers in your garden beds. If this yard was just a row of trees along the fence and then say a low hedge in this front bed it would look okay but not great. They have used different colours, textures and heights all in the same bed here to create something much more interesting. The planters in that corner also create height with the strappy plants. This is why you need to plan our your whole garden so you know that all the plants across the yard work together coherently.

Thank you, that’s great advice