I was working on an archaeological dig not far from the Tipperary town of Nenagh when I painted this. I was returning to my rented house from home the Sunday I started this. I’d forgotten my blue paints. I was annoyed for a while, thinking I’d have to wait another week before I’d start. Then I had the idea of doing the painting without blue and, using the colours I had, came up with an unusual colour scheme. Every day after work, I’d spend a few hours at it in the evening. I was very pleased with the result.