I have used halftone patterns to reduce the number of colours to 4 for screen printing purposes. Still need a few 'distress' passes and the title needs lots of work, but I'm happy so far.
The use of the pink as an overprint for the window shading felt too heavy and ominous, so I've dialled that back.
And given the text a bit more of a considered and intentional look:
So the final image is like this, unless anyone has some recommendations for what needs fixing and flexing?