Creating my digital poster

I have looked at sizes on http://www.standardpostersizes.com/ and chose the medium format.

And these are my final idea using digital/drawing abilities. I just do not feel like i am showing of my photography skills enough. So i tried hard to use photoshop effectively. 

I think the first shown is my favourite so far and i am majorly thinking about using it as my final piece, i just need to add key features on to it like cast and possibly date etc.