from the artist (from my blog):
Jaka Stadler (born 1983) saw this sketch he said 'but I look
like an old man'.
is right, he does look much older than his age because he
has a shaven head and in a portrait of this size watercolours
can catch the head but not the smooth skin and youthful look.
sorry Jaka but perhaps the painting will look like you in
40 years time.
you would like to see how Jaka looks in real life, here
is a picture