.speedy_10

gallery

http://gallery.artofgregmartin.com/tuts_arts/making_a_star_field.html

http://gallery.artofgregmartin.com/tuts_arts/making_a_planet.html

Just messed around with those tutorials for a few hours, and this is what i got :)

Only one stock image was used, and that was for a texture brush (as you'll see if you read the tutorials)

Note: You should definately check out his gallery at this location, i've already got all his images rotating on my desktop :) (knocked my own work off :O )

Enjoy!

*EDIT*
If anyone would like to try add some colour to this and re-submit, i'll be more than glad to send you a B&W copy of this in a high-quality format :)