step 1 of 4
Made a black background with the brush tool. Sure I could've used a black background but how many black canvas' have you seen?
*sbs images not from actual project - illustrative purposes only.
step 2 of 4
On the black blob I drew grey blob using the brush tool.
step 3 of 4
Then I used the dodge & burn tool to light and darken the grey area to make a face.
*again, SBS images are not the actual project - for illustrative purposes though.