Image Effects Using Channels
I used a hummingird photo from FreeStockPhotos.com for this exercise.
Small images link to full-size versions.
Peeking through a dusty window
Peeking through rippled glass
Peeking through a hole in the window screen
Peeking through a hole in the drapes
Peeking through the window blinds
Peeking through the shadow of the window blinds
Black-and-white with a color adjustment gradient effect
My original Spring Hummingbird
I tried some more play with channels after that. Armageddon in the Grand Canyon!
Original image (from FreeeStockPhotos.com)
Channel effects: noise; polar coordinates; spherize repeatedly; apply selection and fill with white; apply image with exclusion