Artwork sites for Mamewah backgrounds

[hypernova]

Certainly there must be some good sites for artwork to use as Mamewah backgrounds.  Wherever they are, I either can't find them, or they're so few and far in between, I'm missing them.

One I'm looking for is Nebula.  I've looked at the ones from jcrouse, localarcade, and marcianitos.  I'm partial to the marcianitos one, but I don't want to use all those boxes for things like flyers and such, plus I'm wondering if there's better looking ones as well. 
I also need one for the gameboy advance, but most of the ones I've seen are either too generic, or employ too many artwork pictures like box scans, cartridge scans, etc.

Any good ideas specific for these emulators?  Any good general sites for others that I might like better than the ones I currently have?

[RetroBorg]

There might be something you like on this site: http://localarcade.com/screenshotarchive/skins.htm

Edit: Obviously not as you've already looked there.

[hypernova]

Anyone got anything for suggestion?  I tried emailing the marcianitos site about their nebula skin for .psd files, but apparently they are gone.  Trying to put one together like that myself is beyond my abilities.

Just a decent fighter skin would be nice.  Localarcade's just aren't that great, in my opinion.

[zvar]

These are a couple more I have bookmarked...

http://www.marcianitos.org/tutoriales/mamewahcfg/mwdisenos.htm
http://www.emuchrist.org/cpviewer/downloads.htm

Steven

[hypernova]

Already aware of those.  (Look up!)