Thaks by the help Manupix, now i'm going to do some studies.

Thanks for the Criticism,

Yes, I have some problems with the construction of a pallete/hue shifting, the shading and the perspective, i'm go to training this bad point to be bether. You have any tip?

Sorry by the bad english :/

okay to use as reference but not the Pixelate

http://fc02.deviantart.net/fs71/f/2011/126/8/e/new_palm_tree_by_l0velyblue-d3fosla.png

Mountains

http://i40.tinypic.com/2eggoj4.png

Persons, this is the base

http://www.bloggang.com/data/j/j-learning/picture/1368925266.png