Here are a few more work-appropriate vegan shoes I found but cannot review. I was surprised to discover a pair of Easy Spirit slingbacks made without leather; they cost only $20, have a 2.5" chunky heel and come in four color choices. Another slingback choice is this Annie Women's Expression Pump with corset detailing - don't worry, the lacing is subtle. It has a 3" slim heel and cost $35. Yet another slingback is the more daring 3 14" slim heel on these Rampage Milan Pumps, at just under $28.
Girly yet surprisingly grown-up are these Madden Mary Jane Pumps; the double strap and 2" kitten heel give a twist to this classic style. These are just a few of the offerings, and the availability varies by size, so I suggest those interested use the sorting feature to see what is available in their own size.