Great idea about the scrubbing brush and Lacquer. I can't believe the difference. In the past I have washed the finished image with soap and water to clean and then applied a smear vegetable oil to give it a glossy look and blend any perspex that had gone white but your idea sounds much better.
Your use of center is brilliant. I always spend ages trying to line it up when it was so simple all the time.
I will give these a go next time.

Cheers
Peter