Wow, this is really horrible and stupid. There is just so much wrong with this that I don't even know where to start. Apart from the flat colours, bad gradient shading and bad use of lines.. the figure (from the waist out mainly) is disproportioned. The head is skewed and all her facial features are either too big or you've tried to represent them with a line segment. You need to simply your drawings down to basic shapes so you can your proportions right. And also please learn how to draw a proper face that actually looks like a face. If not then please leave all your "OC"s on dA.