Tattoo Concept
Designing tattoos (especially on characters that have quite a few of them) is hard and takes a long time and generally means that from that point on, drawing them without clothing cover will be an immense pain in the ass.

Let's do this.

At some point I grew tired, especially in areas I knew the tattoos would rarely be showing. I'm also using the powers of make-believe to imagine all the intense shading on the scale patterns all over him, but I'm not going to mess with trying to paint that on a teeny tiny ref.