It is a bit confusing when it comes to leather - there's terminology like "aniline" and "natural grain bovine" ...which can make sofa shopping even more frustrating. The leather we suggest for most families, and commercial settings is a very durable corrected grain bovine which is available in alot of colours. It's called Millenium range as happens to be the best priced leather also: https://www.strictlycomfort.com.au/leather-range BUT if you're after something very soft, and more natural looking, perhaps you would like this style of leather: http://www.leatherco.com.au/colours/upholstery-leathers/furniture-interior/laguna/3/12/80 We can custom make any of our sofas/chairs/ottomans in any leather or fabric. They're all made here in Sydney and our designers can help with some suggestions & provide quotes. Hopefully this helps a bit!

The most kid and pet friendly couch material is leather. So far our blue leather couch has coped with 18 years of toddlers falling asleep and weeing on it, cat vomit, Easter eggs melting between the cushions, spilt milk, spilt orange juice, spilt red wine, spilt coffee, and muddy dog paws. It just wipes clean. Our white leather chair is just as durable and is now 24 years old and just starting to look grubby. So go with beige or cream if you want. It would be a lovely choice, just make sure it is leather. Black or mid or dark brown would also look lovely with that beautiful rug but I think lighter colours would look fresher. Don't be at all scared to use light coloured leather.

I have used Saatchi Art (saatchiart.com) to both browse and purchase art for our home. Original art work can be purchased and most artists have prints at a more affordable price. It's a good place to determine what styles and mediums you love as you can filter your search. For Australian art I love Blue Thumb (bluethumb.com.au). All Aussie and all original. Very few options for cost effective prints unfortunately. I'd be cautious about filling the space for an instant look. As everyone before me has said "art is personal" and as such, I think it should grow with you and your space. Start with one piece that you really love, big or small and work around that. I have found that putting unusual unexpected items on the wall makes for interesting 'art'. My husband's baby shoes (circa 1953) and now our children's first shoes are objects that always create conversation when guests come over. I have a Mexican art cross (we're not religious, the colours and the metal work drew me to it), a vintage wooden Indian spindle, African birds in a tree hand-beaten and cut from a steel drum, a clay mask my daughter made in art class, a woven Maori kit bag, some art that our kids have done at school (put into Ikea frames so they are always the right size. We change them as something else we love comes home), a hand-made ceramic tile, a growing collection of geckos found in antique stores, vintage travel posters in frames, (I'll stop listing what we have!)...all these items and more, have been collected over the last 20 years and put up around our collection of art or in clusters to create stories. I've collected the initials of our family (yes the child with the "K" is not thrilled it's so small and the child with the "G" feels he's by far the favourite! Needless to say both will be replaced in the future when a more appropriate size comes to light) from vintage stores both here and overseas. Our walls are a growing collection of art and objects and at any time I can move things around and change the composition as a new item is discovered. Best advice I can give you is to have fun with it, enjoy creating your own gallery, it's for you to love you're not required to impress anyone else.

Do you have a picture of the room? If you get a tan leather to go back with the grey, I would want to see cushions, throws, a rug and artwork that have lots of grey and tan to link the colour palette together. If you go for fabric, then your choices for decorating the space can potentially be broadened to your imagination... depending on what else is already in the space (that's why a photo will help).