Hello,
1) Go to Theme Options > Header builder > edit your headers (this demo uses Multiple headers https://youtu.be/BpeXfzNwkOc , so make sure that you edit both or remove one of them of you don’t want to use it) > Header overlap > disable this option.
2) That image is not animated gif even if it has the gif format http://prntscr.com/tpxriy
3) Go to Theme Options > WooCommerce > Single product builder > edit your product (make sure that you don’t have multiple products, then you need to edit other templates if you want to apply changes for them) and edit the Gallery element > choose the layout that suits your needs most of all http://prntscr.com/tpxv2v
Regards