So I decided to have a go at a crow and came up with this... Hope you like it.. somehow XD
If I have the muse/ time I might try something else this weekend :3 Thanks for the fun!
EDIT: I'm sorry if you wanted something realistic... when I read the part about Big Bertha, I suddenly got this cartoony-image in my head and I JUST HAD TO get it down. XD An angry clownfish with blade-fins and shark fin! The story about your clownfish made me smile because I used to have a tank cleaner fish that was extremely aggressive. Needless to say he was my favourite, mainly because he had such a colourful personality that contrasted with the others haha. This was really fun to draw btw; please disregard if it wasn't what you were looking for; I don't mind!
If you would like non-marked images Cj, just send me a message and I'll message you back with the links to these images without my name on them for your personal use. Thanks!