PhotoFiltre is a Free Picture Editing Software created by Antonio Da Cruz. This Portable Picture Editor can be used to quickly touch up photos, add effects, resize photos, correct red eye, white balance correction, and much more.
Fotografix is a Free Photo Editor that can be used to edit your Pictures, Photos or other images. The Free Image Editor works much like a minimalistic Photoshop, featuring many of the same options without the bloat.
RealWorld Paint is a Portable Image Editor or Free Photo Editor. Much like Photoshop and other high end editors, this freeware graphical editor allows users to edit pictures using layers and assign custom effects to every layer.