NFT Character design

I'm currently working on a test phase (no spec work!) for an exciting new project: character design for an NFT collection. The idea is to develop a few characters with lots of interchangeable features such as hair, eye color, outfits, accessories and backgrounds based on a theme I can't disclose just yet. On this test phase, I'm presenting the client with a few character styles with slightly different approaches. This is actually a version I discarded because it was a compromise between two different approaches and sometimes I feel like these "in-between" versions end up being kind of bland. I'm hoping the client likes my drafts and gives me green light to proceed with the development of the whole collection. Would love to know your thoughts on these :)