PhotoFlare - Quick, simple but powerful Cross Platform image editor.
Saint Paint Studio - Saint Paint - The Essential Image Editor
PixBuilder - Free Photo Editing Software for PC
AliveColors - AliveColors is comprehensive graphics and photo editing software for Windows and Mac.
PhotoDemon - Lightweight portable BSD licensed photo editor for Windows focused on performance and usability.
Sagelight - Sagelight is a comprehensive editing platform that allows adding multiple features to the images by improving, retouching, modifying the selective pics with high-quality work.