I don't have too much to say on these.
1. These both look like they've been "traced", or like you were trying to replicate exactly what the original drawings looked like. Don't do that. Try to draw from imagination.
2. The attempt at shading falls flat. I'm a broken record at this point, but do some studies of real life objects to improve.
- - - Post Merge - - -
1. Your strong suit is clean design and color. All of your illustrations are very smooth and appealing to the eye.
2. You're weakest in drawing and diversifying what the subject of your work is. Almost everything you have in your illustrations are cute anime girls, and your realism doesn't look like realism. Like I've said plenty enough in this thread, draw from life more and learn the fundamentals of art.