Spectacular job, it really captures the essence of an Australian house, well done.
One thing which I always find disappointing in interiors (apart from one guy) is plants. The lighting and materials look spot on, composition is nice, but the plants just look like plastic. Give them a bit of translucency and try to work with the roughness map as well as you can. It might actually help to just go find a leaf of the type of plant you’re trying to make so you can get an idea as to how it looks.
Otherwise, this is pretty much flawless. Awesome work.
In that case I could not do the job, but normally in the area of architecture and the clients I have always wanted 3dsmax (because it is the program they know where you can achieve what they want) Instantly convinced them that blender is also achieved good results.
Speaking so that the client only wants images or videos, if the client wants a file can be exported to .FBX or .OBJ, I believe that for everything you can find a solution.