Begonia 'Erythrophylla'

Begonia I drew for my Botany lab report

my group’s plant wasn’t labeled when we got it from the greenhouse, so we didn’t know what species it was, but we think semperflorens is probably close?

EDIT- forgot a bonus pic
EDIT 2- recently figured out the name of this guy, enjoy the now-properly-labeled begonia 3 yrs after the fact