The Snake

This is a watercolour, 5" by 7". I painted this because one of my former elementary school students really wanted a painting of a snake. Sadly, after I did it and notified her, she never picked it up, so eventually it sold to someone else. D: It was meant to be a gift ( I rarely charge little kids for paintings...unless their parents are rich )
I'm not sure what particular species this snake is. If you hapen to know, I'd certainly appreciate you filling me in.