Excellent C&C. Thanks. ^_^ What do you mean by the Easter egg? XD Am I not seeing something? As for the doors, it may not look it, but they're rotating doors. xD Or that was the original idea. Like a spinny- four plated door. As for the sakura, see if this is any better.

As opposed to this.

(original)
I think what I might do is create some baby pines with that smaller tree trunk. Maybe I'll make some plain old "stumps" too. =3 And do you think I should change the doors anyway? Your comments are much appreciated so thank you!
And here's all the trees so far with a few new things.

The pink tree was made green. I made a stump. xD And 3 smaller trees, one of which is a pixel wider than the others and one of which has a few pink berries.
Wow, hey thanks, yet again. xD And I think I get what you're saying about the buildings.

<--- Maybe? or (doors changed a lil more)

<-----Maybe (take2)? xD The only difference is the switched colors in the right door panel. The highlight is on the left of the right panel in the first, and on right of right in the other.
As for Tropie, I like both versions. I think his might just need a bald head or something. As for mine, I think maybe the neck needs to be longer... What do you think? Again, with West's Tropie, it's more of a "baby" pokemon if you can see where he's coming from. Like pichu, which looks very similar to pikachu. Or riolu and lucario. (where riolu looks a lot like lucario.) With mine, I was simply thinking of a pre-evolution like with Budew and Rosailia or Trapinch and Vibrava.
As for the project overall, I should be working on whats absolutely necessary first... (trainer sprites, trainer backsprites, already done fakemon backsprites...) and I've gotten some of that done, but doing this kind of thing really slows down the project. xD;
Much better on the Sakura! The old one made me feel as though it was Fall with the leaves almost gone O_o.
As for the new trees, (and stump,) they look great. The berry tree is my favorite, even though you can barely see the berries.
And, as for the buildings, I see what you were going for now, especially with the lighting on the glass. Just one question, though: Does it ACTUALLY revolve? If so, you may wanna widen the doors a bit, so the trainer can actually go through the door.
Finally, I agree with you, for the most part, about Tropie. I don't think he should be completely bald, but he could have something like a small cap, sorta like a Kippah, (if you don't know, Google it), or something along those lines.
Edit: Just noticed the new trainer sprites. I don't think they have too much color. I do think you may wanna watch how the arms and legs bend. You don't want them to turn into waves of skin and bone. Try editing how the bodies are positioned, or something like that.