I have been around here a little while and haven't come across many wreaths, you might just have found your niche! and just don't know it yet.
I was pretty naive at first on Etsy and thought that "they would all come," but it turns out that to be discovered here needs A LOT OF WORK (pretty fun work actually). Start here and follow the links
http://www.etsy.com/storque/seller-handbook/the-etsy-seller-handbook-all-our-how-tos-about-selling-2...As your shop already suggests, wreaths can prove to be a nice decoration for any occasion all year long, and themed wreaths... a must.
You could also create small items inspired by your wreath work, for example, table/mantle/shelf decorations that could sell for a lower price and attract people with a bit less money in their pockets, since lately it would appear that buyers are more cautious.
Also don't be afraid to list everything as suggested by Diana even if it is Xmas or Easter themed, there are avid collectors who buy themed creations all year long.
Since I joined and participated in some teams, my views have more than doubled. Sales haven't increased yet but I don't despair.
I'm very very shy in nature and waited too long to participate in teams. So don't delay, come in, have your say on many topics and you will see interest in your shop growing.
As for photo tips and tricks, Etsy may be the best place in the whole Internet to get sound advice and help. Just browse