Gallery Fee Advice

Hi, newbie here. I just setup my profile over the weekend and my first private set are photos from shoots I’ve done over the years with a professional foot fetish photographer. Is $1 an image a fair price for something like this? My other sets are priced way lower but for something like this, is $20 for 20 images reasonable? 

https://funwithfeet.com/seller/FeetyJinxy