Tutorials for 2d asset creation

Hi guys, do you know some tutorial where shows how to make 2d Assets like this: Imgur: The magic of the Internet ??

maybe with photoshop, inkscape or Gimp?
because i don’t know how to use this tools.

Thanks in advance

Check out http://2dgameartforprogrammers.blogspot.ca/ … if you go back to the beginning of his posts it will all make good sense.

Cheers!

http://2dgameartforprogrammers.blogspot.com/2011/10/continue-fun-with-squares.html

This is probably the most suitable post on my blog about making 2D game art with inkscape.
Enjoy!