You're looking at a scan of a photocopy of a painting by an artist
whose talent disproves a popular misconception. Namely, that if some-
one is good at something, they'd be making a full-time living from it. If
they don't, so some cynics claim, then that's proof that the person isn't
particularly proficient at what he or she does.
The fellow who painted the above picture is also a talented comic
strip artist, but doesn't work in the industry because a debilitating eye
condition means that he can only paint or draw in short bursts, limiting
his opportunities to produce pictures in a professional capacity.
However, as you can see, he's a bona-fide artist, who is exceptionally
good at what he does - but it's not his full-time occupation. Remember
that the next time you're tempted to dismiss someone merely because
they don't utilise their talents in a commercial capacity.
(Or extol some lesser artists because they do.)