Rick and morty poster /nice drawing

Hello there! Im pretty new to this "hire a designer" thing, you are the first i have ever picked to be exact. I m not sure if you are the one i am really looking for ,but lets give it a try.

I would like to have a rick and morty poster for my wall. It can be colourful if you like, random stuff here and there :D idk. I would like to have them in their original clothes /style ,on the other hand ,they can wield weapons maybe ,if you like . (Laser pistols for example) or random gadgets.. monsters on the side ,random things. The whole thing can be rotated by a few degrees too.

My sister made this for a friend of ours and thats why i want you now to help me. (Attached) sorry if you are not the one, please reply ,tell me your opinion ,we can talk about it. Please contact me. We could discuss size, total price ,deadline ,up to you ,im not an expert. Make sure to contact me before starting.

Have a nice one
Dániel