I apologize for the small rendering mistake
View attachment 4435805
I don't know what mistake you're talking about, the art as a whole isn't bad, but you know what could make it really good?
Work on positioning Sophia's hands(they hung in the air) so that the hands touch Sam's back and depending on what moment of sex you want to show, you can adjust your fingers so that, for example, if Sophia cums, it would look like she’s digging into Sam’s back. At the same time, open her mouth and eyes a little and Sam should look at her and not somewhere down!