Panorama & Layer Masks
Creating panoramas: Gimp-panoramas
Create a Panorama using GIMP:  Panoramas
Blend Edges with a Layer Mask:  Layer Marks for Panoramas
Perspective & Changing Skies
Post Processing Architectural Images
Change daylight to ominous night time in GIMP:    YouTube Skies
Correcting perspective distortion with GIMP:     Adjust Perspective
HDR Photography (high dynamic range):     HDR
Creating attractive banners and buttons from digital photographs -Gimp
Button Images with GimpBanner Images with Gimp
Re-Touch, Restore & Add Characters
Editing, Restoring and Enhancing, Digital Images