I have edited quite a few images.
Check them out!

1st image of this thread
http://i.imgur.com/4Sc34.jpg

1st ever image i edited using Paint.NET
http://i.imgur.com/MtTwk.jpg

Image for SpazDragon1397 (he asked for blue!)
http://i.imgur.com/hY3BR.jpg

Image for my friend Frosty
http://i.imgur.com/cTSt5.jpg

Image of me and Frosty (PONIEZ)
http://i.imgur.com/B7MDZ.jpg

Image for Zeke
Black and white background: http://i.imgur.com/J4KiF.png
Jungle background: http://i.imgur.com/KaxZI.jpg

Avatar for mman789
http://i.imgur.com/d5QjT.png

Image for Winston_
http://i.imgur.com/Hs3QD.png

Image for Gibbo
http://i.imgur.com/jPujO.png

:D

Requests
These are the requests i have:
[MLG]xX$h!neXx, Hotketchup99, BOOM.

I'M NOT DOING REQUESTS
The requests i have are from my friends so i will do these but i am not doing requests anymore. And shall never do them ever again! MUAHAHHAHA! (Sorry btw)

How did i make these images
I used Paint.NET which can be downloaded here: http://www.getpaint.net/download.html
I also installed a plugin on Paint.NET which makes transparency a lot easier! The plugin can be found here: http://forums.getpaint.net/index.php?/topic/15595-grim-color-reaper-plugin/
Here is a tutorial on how to install plugins on Paint.NET: http://boltbait.com/pdn/InstallingEffects.asp
Try doing images yourself. It's not that tough! :D

PS: I didn't use the Grim Color Reaper plugin for the first image as i didn't have it that time.