Should look something like this( one I shot in Arkansas a couple of years ago)That came out nice. My first attempt was laborious, as I boiled the skull and used a pressure washer to clean all the "matter". I did use 40% peroxide gel to whiten the skull (asked a friend that is a taxidermist what to use) and then wrapped with saran wrap and left in the sun. This bleached it really good (just need to not get it on the antlers - wrap them first).
Can't wait to see the finished work.