I think it's more a matter of the rest of us have her so busy with "special orders" she hasn't had time to make & photograph those bags in other fabrics! LOL
Truly, she'll make any bag in any fabric on the site, so if you're in love with another fabric, do what the rest of us do & send her a note. That's how I got both of mine; my red japanese print original Kindle bag was one she didn't have listed at the time, but does now. The Martini Dot combo I received today as a travel bag was based on a handbag she had listed (which, ultimately, I also bought).
Her turnaround is very fast, I don't think requesting a specific fabric combination will add more than a day or so to your order. And it's probably a lot faster than waiting for her to put up new listings right now.