Well, I'm sorry to bore you, FP but this was the first time I noticed the similarities....which as an artist I can clearly see. I said he looked a little like Glenn, especially around the eyes, eyebrows and nose - they are quite alike. His ears are larger while his mouth is smaller than Glenn's.
And as he's only 27 I think NMB's observations about the long hair and drooping moustache would fit Glenn's timeline which is why she picked that particular look.
I'm very tempted to do a mock-up of del Potro with the 'tache and long hair for fun which is why I posted in the first place.