Well, it's your decision, but I think, you should try it again. You can't learn anything, if you give up. Redrawing the feather wasn't neccessary (for perspective) in my opinion - at most, because they look a little bit like fish scales. And beveling the blood is better then such a light beveling of arms and legs. It's mostly a question of the right perspective - nothing else.
Here 2 little examples, what I mean:
I see two options:
You draw the blood or other more or less flat objects directly in the right perspective.
You draw like before and use then Layers -> Rotate/Zoom.
Additional an alternative wing: