Background: It is very well done with details then a blur-type effect applied, but it makes the street light thingy in the upper right hand corner a lil hard to place [at first without starting] but no complaints here I love it, it sets a hyper setting for someone full of energy or to raelax in!
Again the eye's are closed, or the one seen, but here it really fits but leaving it closed closes some impact, however it gives a sense of calm contentness~!
Her nosey seems a lil to blocky at the start and continues the theme until the bottom where it actually becomes from blacky to compliment the strict style you used - thus making it not a problem at all
I am not very sure about the shoulders they seem a little out of place as if one is to elevated when contrasted to the further, maybe drawing the right line a little more curved down would help but the same length!
Which plops down intot he arm making ti what seems just a wiggle to high next to her bosom [just a little!]
The tail seems to be brought to the foreground with the colors where it might have been able to be complimented with a little more curviness at the base and lesser of a connection point to make it seem like it is 'flipped' out like that, I think it is because the darker colors along the bottom but I am not 100% sure!
I am not sure if you meant it to be like this but the bottom of the bent knee where the hamstrings muscles connect seem to have a light spot that my eye's keep dragging to.. >-<;;
The far left [fully extended] footy seems to have a lil to much thickness like the other and the big toe on it is a lil to bit with the bend it has, also the heel on it is a lil to bottom heavy which can be offset if you lighten the color and curve it up sooner.
I really like the background and colors you choose for it. Reminds me of a place I once went for summer vacation, and I really like the art style you used for the background aswell. The only critic I chould give is that I think you should draw Suika to have a more, 3D effect, if you know what I mean. Its kinda flat and I think a more better effect whould fit the background more. (And yeah thats pretty much it, DeviantArt only allows 100 or more words for a critic so yeah I´m just going to spam this spam spam spam spam.)