They both look great! I really like the simple coloring

But I do agree with what runeraccoon said.
There were also somethings that I noticed:
- The girl's left boob profile shows the fullness of it, but other than that, her boobs look really flat.
- The lighting on the clothes seems to be off, specifically the light ones.
Ex) (I know runeraccoon mentioned this but I also want to add a bit of my two cents in too.) The girl's bra's shadow is overwhelming the base color, which makes the lighting off. Doing shadows on the creases of the seashell and on the bottom half of her bra will make it look more natural, but otherwise, I like the subtleness of the highlights. Speaking of which, the highlights on the gray clothing piece (not sure what it's called) over the guy's shoulder is a bit too bright and would have looked better for it to be the base color instead.
They just need some tweeks but overall, they're good.