I'm going to start off with the positives of this piece.
It's a cute looking girl character and the way you coloured the picture looks rather amusing to look at.
Although, you do have many many improvements you can place on this piece. For example, I know you couldn't help this one, but this is kind of a critical response to xXTacowoverXx on the fact she should try to create a more interesting character design and try to include more different ways to improve her character with others.
Vision is quite simple, I see how you've placed her alone which I actually think looks quite good for the character since it seems like something you'd expect of her, although the appearance of the picture, the background seems somewhat over-used by a lot of people, giving the originality level a little step back. I do enjoy her facial expression in the picture though, for it also seems like a facial expression that the character would make.
The technique also can have a lot of improvements one being try to use different sizes of lines in your program, for example a thinner line for the breast crack or mouth. Also, I find this one a very important improvement is the eye shine, try to make it remain in the eye unless you are expecting people to attempt a thought that her eye is glowing, not shining.
The background also lacks some parts of effort which I personally believe could've been used in a different way, even in my opinion a dark room with a dim light would also be a nice scenery for her.
The breast, don't think I am a pervert saying are also could be improved, for they look too far up and seem like something you would see if they took Plastic Surgery also, the right boob is slightly smaller than the left, so I would be careful in size too.
Even though you have some improvements to think of you do in fact have a lovely picture here, the impact it gives, such a vibrant feeling from the background colours, and I love how you included something to make her stand out, (Red on blue etc.) So, I hope you listen to my criticism and take notes for improvements, and I can't wait to see what work you can produce next~!