Katrina has been collaborating with poet Judy Brown for several years. The two poets send each other a package of poetry prompts and a letter each month. The package includes an art image to write from and a poem, which the other has to respond to, a batch of drafts for critiquing and a letter.
You can read a joint blog posting from Judy and Katrina on the Something Rhymed website, https://somethingrhymed.com/2017/12/22/judy-brown-and-katrina-naomi-loyal-to-the-letter/
The Something Rhymed website celebrates friendship between female writers. Katrina and Judy are both Seren poets but they met in London years ago when they were both starting out. For more on Judy Brown’s poetry, see http://www.judy-brown.co.uk/about