you gotta help me...

i need your help, any tips, hints or tricks you can give me to improve this currently incomplete drawing. you all should know the picture (frank iero and gerard way, band members of my chemical romance), and i need you to be brutally honest in order for me to get the best final result, i will greatly appreciate your creative comments, and please don't be afraid to let the claws come out (:

sorry about the low quality

reference: [link]