Nice concept you had here. The tree looks pretty well detailed but most of it is hidden. The two fluttershys looks pretty good but to me seem a little flat (like the shading on the body wasn't dark enough). Also looks a little bunched up to me, it probably would've been better to spread it out a little bit more and increase the sky background a bit and extend the roots of the tree so they matchup right, or decrease the Fluttershys size. Last thing is the upside down bad fluttershy to counter the good fluttershy. I see what you were going for but the vibe that the background gives off doesn't have quite get that ying yang/contrast/vs vibe to it as transition isn't that apparent/sudden to give it so. What might been have better would to have had the two fluttershys facing eachother to really give it that one vs the other/opposite vibe to it.