well let's go to the good things first. i love the cloth , hair and overall on this drawing is good. i really like the concept tough and your style is kinda original. not too much anime but not too much cartoonish i love how you mix both style into one. i give you kudos for this
okay let's go to the critique , the hair is good , just need little bit of highlight , the eyes need some highlight for make it more life. the other is fine , the skin coloring is well done but maybe the shade you can use a peach color , try playing with saturation than lightness for determining shading. sometimes use more saturate color than darker color have a better result on shading
you may need learn about finishing a pieces , adding more detail more detail until you don't know what you want to do with your art. like adding texture , pattern , playing with free unique photoshop brush.