I read all the descriptions and look at all the photos (I collect Barbie outfits and occasionally dolls though I prefer the vintage style) and I've looked at your listings. 

Some of the initial photos could be better.  I think they need more 'punch'.  I've found some Barbie doll sellers have a standard background (or more) that they use which contrasts with boxes, loose dolls etc which are shown in a standard size so they all stand out better.  Also, if you can open up a box and tidy the doll position or outfit or whatever I think it would help a lot.  I also think it is better to leave out any fuzzy photos.

Sadly I think some buyers are sucked in by the word RARE.  Nothing is sillier than seeing 8 listings for the same doll and they are all described as Rare.  I don't care if an item is new or NRFB as I debox my purchases anyway, but I guess if it's been bought for display as is, persumably stating whether it is new or not matters.  So does showing the doll at its best advantage.

Your prices are really good.  I don't understand why anyone would choose a more expensive option, unless I guess, the doll is not be deboxed or they made a snap decision based on one photo.