I like the daisy house, I can kind of see what you mean by the green bit being a stem, although when you originally described that I kind of pictured a curled over stem for some reason, over-active imagination I guess.
Anyway, having got the challenge I was working on out of the way I've gone back to working on my tree house, and I've kind of run into a problem.
This is what it currently looks like from the front (not much changed from before apart from the colours).
And this is what it looks like from the back.
I like both, but I'm not sure they really belong to the same house, so what I might do is save what I've got to the library and then make two different versions, one from the part at the front and one from the part at the back.
It's also a little more expensive than I'd like it to be at the moment, but that's a separate issue.