4 hours?! No way, that can't be right, not with that many details...I'm probably just slow at drawing.
Looks really nice, again, I'm impressed by the detail on everything. The raw meat looks fine, kinda looks more marbled than meaty. Though, the pattern that you did on the pig head in the foreground feels more accurate as a meat texture, I'd say use that kind of vein-y pattern next time you do raw meat, or add a few veins to the marbled pattern.
Haven't drawn raw meat myself, so I don't know how accurate it is, but to me veins give-off a sort of meat-like quality to them. It's hard to explain, and I've probably rambled-on longer than I needed.
But yeah, good drawing!