Yeah, something. I don't do much pouring of coffee into ceramic mugs, and never this black, but I'd think you could see some small bubbles, foam at the edge, and it's not that HD but maybe even condensation or steam around it. It's just too perfect imo

I might be biased now that I know that it's a render, but something about the mug and it's contents... idk, just doesn't strike me as a liquid, too pristine maybe. Just a mirrored surface trying to look like black coffee or something.