Great artwork! Chun-Lis my fave! I like the colors you used, They create a high gloss effect thats really cool, Letraset i've seen before and they give great results, So do Copic but they're damn expensive!
No problemo! Yeah Copics great but its expensive because the pros in Advertising, Graphic Arts, Animation etc. use them! Hell i use a Artstore brand of markers called Artist's Loft and get great if not better results than the fancy crap!