Product Detail App Design

I am working on this app design for a design challenge. Just a clean Product Detail page. I was playing with a different thumbnail gallery for fast browsing, and then tap to see larger image and swipe through.

Process: Designed in Sketch, prototyped in Flinto.

Product Image I used was from this Etsy site. Pretty cool masks. https://www.etsy.com/listing/239893905/bison-mask-build-your-own-using-simple?ref=shop_home_active_30