If your creations help others to enjoy bike riding, I'm all for them.

Helmet covers can be useful, too, if they either permit ventillation or, in colder weather, stop air flow. The fabric print choice would need to have some solids and maybe a classic longitudinal center stripe...

Your bags are cute - do you have any user feedback on their durability?

Most bike stuff gets very, very worn, dirty, wet, abraded, and smelly. Do you treat the fabric with anything for water or stain resistance? How are they cleaned? Do you have gusseting or leather reinforcement at the key joints, mounting points?