I've always fancied giving the hanging from bulldog clips a go, so I have. I hung the poster with them and against a white wall. I needed to have better lighting for this definitely, but after much editing it didn't turn out too bad. I quite like this.
Decided to try having a slate colour stuck up on the wall behind it to photo, see if this made the idea any better/worse. This has also turned out well. It didn't take as much editing as the previous, but again the same comment with the lighting. I like this though. The sate definitely makes the poster stand out more against it.