I'm not much of a red drinker - but the color made for an interesting still-life.
I started with this IPad sketch.
Then after getting background colors still wet,
I flew through the glass - with the trickiest thing having to be coming up with a red wine color. Hint, purples, blues, reds & black. Don't even think I got it right after all that (but right here - my favorite part, highlights in pure white)!