I really like this - Its fun and original and makes a great story.
*as far as the clouds go the only thing I would change is the one that hits the middle tree and never comes out the other side. Its just seems a bit odd.....
* would soften the horizon line to make it look further away
*I would soften the beach/water line for the same reason and maybe make the beach a bit deeper. Having more light values behind the hat will make it stand out more.
*I would add some lights to the left side of the trees on the left and middle.
* I would put some more texture in the sand and add the shadow of the hammock.
*I would dull the second hammock
Oh.... and expand some of that purple into other parts of the piece!
Thanks for sharing.