JOhn, I really like your site. It is very responsive and iI clicked around for about half a minute even though I wasn't planning on staying. You have done a great job if you programmed or customized the php code yourself. It is simple and to the point.
Unfortunately, the domain name connects with the content very little. I went from expecting pets or hard core motorcycles, to believing your are selling cars (thunderbirds?), then I thought ok this is a luxury car auction, but found out this is general auction site.
I think you should score a more appropriate domain name to showcase your work.
LuxuryBirds.com is a great name, I can't see the package selling unless the buyer is resourceful and splits in into the two components (and is willing to try and compete with Ebay) or sells only cars, or discards the content.
Did you use open source php or an auction-specific product for the design?