Hello,
To get the vertical gallery go to Theme Options > Single product > choose vertical for the Thumbnails gallery.
To get variations you need to create variable product type and enable variation swatches after that https://www.youtube.com/watch?v=XO-PDvhPypc
To add the PayPal button install and activate WooCommerce PayPal Checkout Gateway and follow the plugin instructions to enable button at the single product page.
Regards