Need to design a a5 graphic for a contact of a box

I am looking to create a black illustration showing content of a gift box.

I created a mockup ilustration attached but I need it to look more professional and the photos have to be changed into drawings using black ink only (it is an inside of a postal box in a5 size.

The contents are:
-red bull can
- mini bottle of Abolute Vodka
- Jelly Beans
- Stress Ball

Each image also has text as per my mockup.