Oh hello I've read your comic. I am really impressed by the way you draw the dragon, how great it is. Characters illustration maybe also your strength, I could say because they are well depicted. One comment is about coloring part. It is a little bit messy. You could improve by using magic wand tool, choose the area and draw within it. Color can evoke emotion, your color theme fits well on action style, but it needs to be neater. You can color character by water color, but to draw shade and character's skin, you need to pick color in the "neighbor color area". That tool is placed next to the HTML color board