Hello,I'm here to give you a very short critique!
Hope it will help you
Good things - I love the way you colored the background and her skin,The scenario is really good,In general this deviation is awesome.
Bad things - The lines are a little sketchy
- for Sai,using the curve tool on the other layer option (the one with the little pen in it) is the best to make line-art.
You know,the lines remind me about how in anime's if something was going to move in the background,they would of make it look different (Sorry if this offends you )
because the character looks a little unrelated to the background because the line art,
And to be honest with the curve tool it will probably make it worse xD
well i have no idea,but you should try!
Also,i don't know if this is intended or not,but her eyes are really different,
But that probably is intended isn't it?
Hope its okay!