I really like these a lot. The author/photographer is great at finding cute scenes for Blythe to hang out in, and her home-made outfits are cool, hip, and adorable. Depending on where my friends and family members live, I'll send them postcards based on the opposite time of year: the beach for my sister living out cold winters, snowy days for friends living in hot, muggy climes, etc. They're tons of fun, highly original and all of the cards in the pack are different.
My only suggestion (total pie-in-the-sky ridiculousness, considering the company doesn't make new Blythe dolls) is for someone to make Blythe-style dolls of different interests/nationalities and have them hang out in the photos, which I think would be fun.