Good job on the clouds; they look really nice. However, the clouds are painted in a way that clashes with the way that character is colored. To me, it looks like there is almost some kind of texture on the clouds, but the character looks like she had the shiny-blur effect added to her. Mixed together, the two make my eyes a bit uncomfortable. I also have a couple more points on the girl:

I don't like how the skin's outline is light while the dress's outline is dark. I don't think having a lighter outline on the skin makes her look more realistic. Rather, I think they have the opposite effect. I'm not sure why. Her arms in particular look really soft or bendable like... a soft plastic? Sorry, I'm not sure how to express what I think, but I guess I could say that she doesn't seem to have depth and the light outline also make the blur harder to look at. She doesn't pop out and have an impact on me despite her being the focus of the wall.

Also, the colors used on her are rather dull and grayish. For me, color is really important in expressing something. She is so happy, yet her colors remind of me dark clouds. Basically, I am saying that I think it would have been better with brighter and perhaps more saturated colors. People generally correlate bright colors with happiness, right? And I think her active expression would match a crisp outline, though that doesn't have to be.

Altogether, I don't see her as "a person" but just a picture on top of painted clouds. That may sound confusing, but even in drawings, you can feel for the characters that are in it if they are portrayed accurately. But here, because of the differences of what I think the character should look like and what you have shown, I'm am not taken into the scene. I don't mean to sound like a crazy artist, but that's how I look at art.

Sorry for any confusing parts ^^

Shades on the body and hair too weak and you soyld work more on the light effect
Also I perfer the scan with lieart ^^
Though clouds are nicely done and I like them^^