You did get yourself a workload with the corrupt raven! Combining bird and human anatomy, enough background that it requires you to account for perspective and heavy duty lighting... You must be really angry with yourself;)
If you are open to critique, i'd do easyer stuff first (as i am doing now after failing several times to do a complex masterpiece), like human figures, animal studies, perspective drawings (not with trees, these are so difficult to draw), special paintings to exercise light and reflection...
The character is scarry, the detail with the doll is a nice touch to it and the background does give that spooky feeling i believe you were trying to achieve.
Post more:)