It's most likely done growing, although girth is the last to complete, so you potentially could gain a bit more. Usually, it's a 4 yr period for penis to mature, and about the same for height gains. Facial hair is the last to settle down, from light fuzz to full strength. Depending on your genetics, you may have chest hair, too. Some guys have rapid penile growth early on in puberty, but most are gradual.
P.S. cool nick