How to change product page and checkout options

Hi,
Two matters:
1 - how to give the customer the choice to either chekout or continue shopping?
2 - how to change the look and feel of the product page (example is: salsashoes.com.au/en/men-shoes/product/1474-230401-.html ). In this page, I would like to reposition delete the title "230401_50_39_24" and change the size of the picture.
Any help will be much appreciated.
Regards.

1. Change the option "When a product is added to the cart" in the Checkout tab of the configuration.

2. The size of the thumbnails can be configured via the Files tab of the configuration.
I don't see "230401_50_39_24" on your page.