I love the composition and colours of this It works really well.
Personally I find the cloud at the top a little distracting and that it doesn't seem to fit in with the rest of the image - I think it would be much stronger without it so that the background is more simple in contrast to the detail of the figure.
As the rest of the image is quite sharp/graphic the softness of the details in the hair looks blurry and seems a little detached (if that makes sense lol). I love the pattern of the hair, I would just suggest making it sharper/more crisp to match the rest of the drawing.
The only other things I would suggest is to perhaps add a line to show where the under-side of her arm is on her body and perhaps adding some white lines into the image somewhere to tie in with the star at the top. It also may just be me but I think perhaps her lips are slightly too far to the right but I'm not sure about that.
I hope some of that was helpful and keep up the good work
Thank you for your input. I agree with you. The 'cloud' was meant to be a milky way but It didn't come out the right way. Thank you for all your input and I hope to try to improve my images in the future.