Feather tutorial
This tutorial is for Photoshop 5.0, but works in other versions of Photoshop as well.
 
1. Pick the middle colour and draw the shape of the feathers on a new layer. 2. Select the area you've just drawn and create a new layer. 3. Pick the darkest of the three colours, and go to Edit > Stroke to make the outline. The settings should be Width: 1 pixel - Location: Center - Opacity: 100% - Mode: Normal.
     
4 . Create another layer, place it under the outline. Choose the middle colour again and make a big field that cover the whole feather-area. This is because if you smudge outside a colourfilled area the edges and colours get messed up. 5. Take the darkest colour and draw strands using the Paintbrush tool. 6. Pick the lightest of the colours and draw the light strands also by using the Paintbrush tool. If you want you can smudge to soften it up a bit, but isn't always necessary.
     
7. Select the first feather layer (step 1). 8. Delete the areas outside the feather. 9. Change the outline layer to Opacity: 70%. Merge the outline layer with the layer you've drawn the dark and light strands on. (It's a good idea to keep a copy of the two layers in case you'd wanna go back and change something.)
     
10. Use the Dodge tool to dodge on the feather where you'd like it to be highlighted. Don't over do it. Highlights on 20% is a good Exposure option. 11. Use the burn tool to make the feather darker. This isn't always necessary though.