Sobek was definitely one of those spur-of-the-moment creations that Shelly comes up with whenever she's with her Muse, aka Katie-imouto. He was also an excuse to write an Anubis/Apollo FORBIDDEN PAIRING fanfic. Turns out he's one of her most loveable characters ever, though. He gets whored out to everyone. Whee!
Here's a "playing around with filters" version that just seems to suit him as an Egyptian god somehow.
This, by the way, is my kitty Angel's favourite picture. She liked batting at my pencil while I was drawing the hair. Lots of quick strokes and all. That pencil turned into Angel's personal chewtoy by the end. You should see the teethmarks. Scary baby kitty, Angel-face is.