I'm not sure if he reminds me more of Pickman's Model or the rats from the Sam and Max cartoon.

It tickles me the things my stuff can remind others of with my art. While I see what you mean (An 'Oh yeah' moment), as I was drawing this I had neither of those in mind. It's all very interesting.

Rat-rat-rat! Haha! Wow, that WAS fast! I would 100% cuddle this rat, and it would be my pal and other people would be horrified but it would be a sweet rat and would eat things/people I don't like for me because that's what a giant rat pal does (you may not have intended it to be giant but my brain is insisting on ROUS-like proportions so I'm stickin' with it!)

I really like how you did its hands, especially its left one! Thank you for the opportunity to get some original art. :3

lol, thinking in giant terms, yes, I like your rat even more.

Yes, it was a fun sketch. Something fun and different from my normal work. I love the variety.