Hey! Qué chévere personaje, dude! :D The only thing I would consider doing is introducing a few more bluish tones throughout the design to better justify the glow effect. I looked up a few references for how the arm could be handled, and this approach felt the most convincing to me. I'd also recommend studying how other artists solve similar rendering challenges so you can analyze their decisions and adapt what works to your own process. Another thing I tried was adding a few icy spikes along the arm. I also really like the idea of giving the character icy eyebrows and light blue eyes. I think those additions would help unify the design and prevent the ice element from feeling isolated to just the arm. Hope this helps! P.S. I haven't forgotten that I still owe you a reply on Instagram hehe.
