So, after the design was approved I quickly had to book a session at WYPW to get the posters printed in time for the show and here's how the day went.
Here are the separations on acetate for the printing process.
Here is the first screen with the image burnt on (using a variety of chemicals and UV light) and you can see the cream paint on the screen, which is being pulled through the mesh of the screen to print onto the paper underneath.
These posters are now available from my online store.
Thanks for reading. I hope this has given you an insight into how the posters were printed.