Woocommerce and premium theme

I am a total beginner so this question may be a pretty easy one to answer.
I would like to buy a premium theme that I found on themeforest. I will be building a site for a photographer that wants to house his photos in multiple galleries and then sell each image in multiple sizes, a la carte. IE 5×7, 8×10 ect. but the theme does not have the shop set up this way. I know woocommerce has the ability to do this but if I am using the theme will I be restricted to using it the way the theme is showing in its demo? I can’t seem to find a theme that shows this option so that is why I think I am confused.