First of all, abney317 is right. He is not here for advertising. I know him from an English SpongeBob forum and he is interested to give us information about SpongeBob related stuff. Hopefully, this thread will stay for that reason.
I can see what you're trying to promote. Like it says
here, this seems to be original SpongeBob production artwork back from 1999 before they used computers.
No wonder, that the auction aims so high when it comes to prices. However, I'm not sure if anyone on this forum will buy anything from there. Most of the SpongeForum users don't really watch SpongeBob anymore (only the first three seasons) or would purchase foreign pictures.
But who knows... maybe there really will be someone even if it's expensive. At least, you tried.