While I do feel that was rather excessive, I love the example screen far too much to complain.
It's the kind of set I'd invent a level concept just to use. If it was a cake I'd eat it.
Before the tree-house was added, I wanted to put in a house, but it would have been only 6 tiles. But I'll happily claim Sergio's 2x4 tall pink tree as my submission with the disclaimer that I can't edit into the set 'cus of translucency, but if I could I'd put the 2x4 beige tree one square right and slot the pink in next to it. (One of these days I'm gonna spend a long afternoon watching tutorial videos for paint.net on Youtube).