Cool! Then I believe having some NPCs with clothes and hair would improve your collection even more! Because for many people not having characters suited for specific tilesets could be a problem when making a game, and they might not buy your beautiful packs for this reason (especially since your style is quite unique!). Not necessarily faces (I'm learning how to make them and I know they are hard!), but at least the playable characters. My suggestion would include something like children, average and older people, with maybe generic clothes that could merge well with the various packs. What do you think?
To tell you the truth, I in fact already have a full set of characters on my dashboard that I chose not to release in late March.
It's a pack of characters with hairstyle, outfits and hats in a victorian style, but the 16x16 pixel resolution makes items look too similar. I'm afraid that a bowler, top and cowboy hat would look too alike, and don't want to charge people 7$ for items that looks too similar so I took out the pack from my market as I'm thinking of a solution.
I understand people need characters for their game and I need to fix this fast.