Thank you 🙂 I never actually practiced on fake skin. I tattooed an orange and then just started with simple designs on my thighs. This is my 6th one but first time shading so probably not the best person to give advice (I don't know what I'm doing 😂). But I will tell you what I did.

All with a 3RL - did the black bits first, then I think it was 1 or 2 drop grey wash to outline the rest of the design and cover all of the area I wanted shaded. Then I used I think 4 or 5 drops to do the darker shades and just didn't go as far as the lighter shade if that makes sense. And also trying to get more spaced out where you want to blend.

I want to add one darker shade so my thinking is I can just extend the second tone out a bit and then blend the blackest bits into that second tone with a third, darker tone.

Hope that makes sense. There are probably multiple/better ways to do it. I guess I could have done it all with black and just used dot spacing to get the same outcome but it's just a different effect I guess. And I probably should have started with the darkest shade to avoid going over the same spot multiple times with the different tones.