Hey!! Todoroki looks great! Thanks for telling me about his right eye, now I shall zoom in on it and critique it (x100)! :P
I like how his red hair is blended into the fire as if it were the red fire itself. I think the smoothness of the fire is a good contrast to the rigidity of the ice.
This might be strange to notice, but the ice directly on the palm of his hand looks really 3-D. You did a really great job on the shading of both the ice and the fire. Those things are super hard to draw.
I'm still too scared to use my markers! The character turntable thing turned out to be much more difficult than I thought. I only drew one perspective and it took me forever. I haven't even traced it with ink (mostly because I still don't like how I drew this guy's face). It's going to take me forever (๑◕︵◕๑)