its all done on a tablet and photoshop. i kind of take a background colour, drop it in, and then squiggle loosley a very transparent colour a lot of time to get background effect. thats pretty much it for everything, the nebula was a lot of fun, i did big splodges of red on one layer, purple the layer beneath and yellow on top, and then used smudge tool to make the swirly cloud.
fun!