I have drawn all of the item artwork for Legendary Voyage myself, I am not the worlds greatest artist but it saves on the bottom line ... cost ... hehe.
I guess I should take it as a compliment that you think it looks like Runescape, although I know many people hate RS for the community it has it obviously does something right with several million subscribers.
A player has also made a short video tutorial you may find helpful:
http://www.youtube.com/watch?v=DvCqoOwVoLI
http://www.youtube.com/watch?v=ydfdGCjCAOk