Hello,

This page has not been added to the menu. Now it has been http://prntscr.com/kp3dm1

Product page can be configured globally and individually. In order to set the same width of image and thumbnails position, navigate to the Theme settings > Product page > Images http://prntscr.com/kp3j17 and set the shadow in Theme settings > Product page http://prntscr.com/kp3jd8

In the product page, there is PRODUCT DESIGN & COLOR OPTIONS tab http://prntscr.com/kp3jor

You can remail without editing if you want the design set in the Theme settings or configure individual.

Best Regards