As soon as I printed the first copy, I realised that I had cut away the leaves at the top too early: the blue of the previous layer shows through. I should have left the top solid for this layer, and then cut away the leaves on the next layer.
So after I'd printed all the copies for this stage, I cut a paper stencil that would expose just the top of the block, and just used a small roller to put more green ink directly onto the paper and hide the blue.
I think I'll get away with it...
