Couple of things I noticed

[Maximus]

first off, Look at what Hurley is painting when he is at the mental institution...
http://i54.photobucket.com/albums/g83/LLOOSSTT/hurley.jpg

When I first saw it I thought of the two men who Penny hired to find the island, who were playing chess and then called Penny to say, "We found it."

Next, a screen capture from the man who Hurley see's in the cabin. Looks a lot like Mr. Christian Shephard.

http://i54.photobucket.com/albums/g83/LLOOSSTT/mrshephard2.jpg

sorry if this has already been posted

[aZiXx]

Yup, its a nice painting. It might be related to those guys in the Arctic, or maybe they are in Antarctica? Its closer to where the island should be... For an igloo with an Inuit-ish person with fish, I'd have to say its the Arctic... could be wrong :)

[bunnydixon]

it made me think of those guys aswell.

[digiboy13]

without doubt Mr. Shephard, its the white shoes that give it away, any clues behind the painting of the dog in that scene?