Trees and shrubs - cool. Not really sure about water tiles. Don't like there is any depth to them. Hope it helps a bit :)

I'll second Aetherna's comments about the depth of the water tiles being a bit odd. From the 2nd preview I like #1 the best. The added depth around the edges of 2 & 3 doesn't fit with the perspective somehow. Especially the shadow along the bottom edge of #3. On the other hand, just a solid line seems really thin. Maybe some kind of edge treatment, like patchy grass, or a turn to dark green around the entire border might be worth trying.
The trees and shrubs all look good, although the black outline feels a bit strong along the top of a few of them. Specifically, 15, 20 & 21. Could just be me over analyzing it, but a thinner outline might work better there.

Just my two cents, hope it's somewhat helpful. I'll say it's all hands down 1000x better than anything I've ever drawn so definitely take my comments with a grain of salt! :)

squish those lily pads a bit. All other "circles" in the scene (the well, tree stump, et cetera) are actually ellipses to show a 3/4 view, but the lily pads are perfectly round so they seem tilted toward the "camera". Besides that, charming!

the grass edge treatment around the water tiles looks fantastic! much improved, great work!