I'm guessing that there isn't a separate channel for the hood so my only suggestion would be to zoom in and, using a 'selection' tool (my preference in Photoshop would be the Pen Tool), outline the hood, create a new layer and fill it so you can then isolate it (pixel lock) so you can put whatever you want on it.
I have no idea what 'those wing thing's' are.
I don't know if you've said in the past which design program you're using but that would help others who might know that particular program to help you out.