I know that Sergals are a combination of raptors and wolves, and I really sat down with some scrap paper for a while to try and capture them in my own way.

I've noticed that I'm tending to take my Sergals in a more raptor-like direction, whereas  trancymick tends to draw his more like wolves than raptors.
I think this is a good and recognizable differentiation. I think it's fun!