I love this piece! The line-less background is so mysterious and I like how Darkky's got a little white outline to bring him out. The color tone is perfect, like it's part of a scene in a movie. You wonder what the letter he's holding is, and you get the feeling that he's uncomfortable and maybe a little scared. The eye movement is a good touch, very smooth animation. The only thing you may want to look into is the clouds. They look really great but their placement confuses me a bit. They kind of cover part of the trees. Maybe they're fog or mist- and that would be totally good! But I can understand that clouds are hard to place so that you don't draw attention away to the subject of the portrait. All-in-all, this is an astounding work of art that really makes me think! I've never seen anything like it!
I got to Lunapic.com then upload the animation I want ;D theen on the side (you might have to search a little) there is a little box that is the crop tool. then type in 150x150 then save it. that's just what I do xD I mean my previews are 150x150 xD lol my explanation sucked sorry haha