Having gone through my (insane amount of) notebooks, I have now got the three I plan to use for my work:
A5 brown leather: Horror/Suspense.
A5 grey cover/black leather notebook insert: Cosy Mysteries.
Narrow brown leather: High Fantasy.
Also chose my pens:
Pink Fountain medium nib.
Lavender Fountain thin nib (as one of the notebooks has quite thin paper).
I have the re-covered notebooks to use to write drafts in, but these ones I'm using for plans and outlines.
And it's sunny outside.
Ama.x