I will say now that i'm going to sound like a jerk. I'm not trying to say it's bad, just trying to say how to improve it. First off I'm going to talk about the angle of the picture. The wolf is holding a telescope and is looking at the stars or moon. However, the wolf should be looking dead ahead not to the side, and if it must look to the side it would be against the right side of the window pane not the left(Viewers right). And if difficult to draw the wolf looking through dead ahead the wolf could just be holding the telescope. The grass and fireflies look okay so I won't say anything bad about that. I will say that not every star in the sky is white. Most appear white, but there are still blue and red ones there too. I just think adding that would make the picture look much more complete in the sky. I also want to say that I'm pretty sure the moon wouldn't be dim unless there were clouds in the sky. However I've only lived in one place so I can't base this thought on experience. Lastly I will adress the treehouse and the tree itself. The leaves look a little odd, but as i'm also bad at drawing leaves so I'm not sure what I could recommend to fix them except look at some pictures of them. Lastly I think the tree should have some bark. Something other than a bunch of smeared browns. The wood for the tree house also needs some kinda of design. The foot planks should look a little 3D and also have a design. One more thing. This would make the picture look cooler, but is not needed. You could also add vines or moss on the treehouse to make it look older.