Hello, I am from china. (my English is not good, I used the webpage translation) Chinese famous companies SINA, it‘s micro-blog use your painting, for commercial use, use it to make money. I would give him authority? look it：[link] ，search text：马里奥
Wow, this is very neat! It definitely deserves the DD it got too, since it looks like a lot hard work was put into including scenes and characters from the old Mario games. What an amazing piece of work! ^^
it's a bit complicated, but basically i use the lasso tool with anti-alias OFF, to create shapes with hard edges that are easy to select with magic wand (also make sure magic wand as anti-alias off). this lets me adjust the colors of each area easily. to make the areas feel like paper, create shadows on a separate layer. basically you paint the shadows as if the areas were casting shadows on each other like real paper.
that's probably not very clear, but i don't have time for a full tutorial, sorry!