i like how you made the grass and trees a smaller land line cute image author, goodluck

The figure needs some fixing on the edges, white lines and some over erasing near the wings. You've given a drop shadow shifted to the right that wouldn't be there. Figure is lighted from upper right so shadow would be beneath and to the left. The blades of grass are in the foreground and they would be over the figure. Mask work is essential to a good chop, many use the pen tool for this but however you prefer doing it you should use layer mask for this. Layer mask allows you to restore edges you cut into by mistake so you can go back and forth to tweak the silo. Study the shadows in the model source photo as a guide to creating your shadows. The overall look is good, the devil is in the details.

Edit: I see you've changed things, you reversed the girl but now you have angular knife sharp edges.

I agree, the grass on the foreground should be before the fairy toes, and the shadows are not proper, it seems like she's floating. The use of dodge and burn would have made the 3 dimensional effect looks better, moreover, more depth of field is needed. By the way, the composition is good, maybe there's too much saturation, but plenty of people love color explosions, so it's just my opinion.