I mostly used the 0.05 multiliner in all the detail work on the phone screen. I used 1.0 for some larger sections and the 2.0 on outlining the hand, fingers, left knee, etc.. This is actually my first time using gray tones only. I did use some neutral grays on the knees and hand. Everything else was cool grays. Ironically I had recently bought all the newer ultra tiny point Staedtler MarsMatic 700 technical pens to go with my set. The 4 new size pens cost more than my set. They were $40ea for the 0.13, 0.18, 0.1 and 0.25. And what's weird about hose measurements, the both the 0.13 and 0.18 are smaller than the 0.1. I didn't use them on this piece because in testing them, they were tearing up the paper pretty bad since they are new and need to be worn in some.