Custom Product Page Shopify

Hello, i want create a custon product page like this https://www.girlfriend.com/collections/gf-swim/products/spritz-whidbey-one-piece

We want put video like is this amd all imagen exactly same

example store: https://www.girlfriend.com/collections/gf-swim/products/spritz-whidbey-one-piece

We are using Gecko Theme