I've done so little painting on Abaddon (just his hair and tabard) that it's not worth posting a photo.
I did get a really old battle report up on my dedicated blog, though. This was played way back in 2003 using 3rd edition 40k. It was a pretty fluffy encounter between my radical Daemonhunters and Wayne's Lost and the Damned.
Check it out here.
I'll be working my way through all my other Daemonhunter battle reports in turn (and there are about thirty of them) so keep your eyes peeled.