Hi CC!
I'd recommend photo work when you get time :)
They're really tiny on many listings. Try to use all 5 photo spaces too, include close ups & details. Can you show what the collars look like being worn?
Add your location to the front page so you come up in local searches, & preferance is also aparently given to shops with an About Page, so pop that on your to do list ;)
Deffo agree with bev re the tags & titles. Really important aspect
Good Luck! Have fun!