Starry night... black fill with noise added (filter) and then played with levels to decrease the light specks
step 2 of 9
Sky: Oval selection, filled with #c8c6c6 and I erased some of the top for the hole with a soft brush
step 3 of 9
Sky: copied sky layer, selected a color burn blending option and set the opacity to 60%.
step 4 of 9
Earth: oval selection filled with #d6e4d8 and clouds added to make it look snowy...
step 5 of 9
Mountains: polygonal lasso tool filled with white and rendered fibers
step 6 of 9
Ravine: pen tool drawing filled with #777272. Copied the layer and scaled it down, erased the extra parts. Added ice blocks, which are pieces of the mountains.
step 7 of 9
Clouds: made with the brush adjusted according to the tutorial mentioned.
step 8 of 9
Ozone machine: put together in Illustrator CS3. Just shapes and for the bottom part, many of them scaled down and filled with black and gray alternating.
step 9 of 9
Ozone spray, hose and shadows:
Added a hose and shadows for the hose and machine. Also added ozone spray. Polygonal lasso tool filled with white and set opacity to 60%.