Pretty good piece, I like the detailing on the clothes especially and the anatomy is pretty good. I feel like Pico's expression could be stronger though. He's not really showing any real emotion, he just kinda... is. What is he feelin in this image?
Also the highlighting on the hair could use work, it looks less like the hair is reflecting light and more like their hair is graying. Especially Darnell, who's hair type wouldn't even highlight like that.
Either way, keep up the good work my man and I hope to possibly see more from you soon down the line.