To add products into your site from web control panel, other required module will be 'Category'. The product can have n-level status.

It means you can add product to a category-sub category-sub sub category-.... and then you can apply product to the last sub category. eg

You can apply products in following manner

i) Category -> Product - This means you can directly apply product to the main category 

ii) Category -> Sub Category -> Product 

iii) Category -> Sub Category -> Sub Sub Category -> Product 

and so on

While adding product you can also add maximum 5 photos for each product and also can set which photo you want to show as the main photo in the product listing page.]

Photo Features 

1) Main Photo will be resized to the default image width and height automatically.

2) While adding product only photos related to the product will be displayed in the image upload wizard.

etc...