No Problem....I'm explaining it this way.

I've created the coin in the golden foil in maya, with shading network, textures. Added proper lighting and rendererd it out (with alpha channel).

rotating the object a bit...render again...saved again.
repeated that several time, to get several angles of the product.

Made the same with the chocolate coin and the paper role that you can see in the background.

opened all rendered images in Photoshop. Created a new document and pasted every single object. Now I started layouting the whole stuff..."...this coin in front..this in the back, this coin is hanging a bit over this one..." aso. Added the paper-roll as well. Now started adding effect like shadows under each single element....and shadows casted by one object influencing the other...for example when two coins are lying on each other..the upper coin casts a shadow on the one that's underneath.

Finally made some color corrections....for a clean golden look...and blurred some elements, to let them dissapear in the background...

Everything clear now ?