I like the sharp angles of the characters, really like how you did the scarf on the female.
I think the background is well done too, the clouds are nice.
But something just isn't right, I think the characters don't feel apart of the background.
I don't what has happened or is happening, has the man just leaped out of the crows nest and is looking in his telescope mid-fall.
So I'm not sure. But I still think its a nice piece.