Don't like any of them. Way too cluttered. How can you see what's what? Art should be more than wallpaper.

All too much for me and the hallway is definitely not family friendly.

Probably the light blue room - but not sure what the purpose of all these displays is. Only the blue room looks a bit like treasured pieces assembled over time - the rest all look a bit decorator-y to me.

None of them – too busy, too contrived and really the 'art' feels dismissed and unimportant (and I suspect that that is probably the case – if it were important to you because of beauty or sentiment or genuine interest it wouldn't be relegated to an over-busy wall just to complete some grid or slightly random pattern). I have a lot of paintings, drawings, etchings and photographs around my house but each one is there because it has meaning and adds to my life and aesthetic pleasure. When they have to share a wall I spend time ensuring that each is still able to be seen, appreciated and respected in its own right.