[wao]

I don't think the unrecognized characters necessarily come from anywhere. They might be original characters by the original artist - but in which case it would only be right to identify the source because technically that person has all the rights to their work, and here we are just using them :P Althoguh I remember Deathkillz's one had a source picture mentioned somewhere...

I personally voted for Slugzilla's because it had the best colour harmony and 'feel'. Also nothing really felt jarring. There's something jarring about nearly all the others... if it wasn't for Slugzilla's, I'd have voted for ^Aya^ - 01. Because it's hilarious.