Sometimes I have a determined plan in my head about where a design should end up, and other times (most others) I just see how the pieces fit together and how much I like the look.
Not just with glass, but also with quilting and crochet, I will lay out a design, take a photo, move it around, take a photo...numerous times. Then I go and make a cup of tea and flick through the photos, finally choosing a design/layout that way.
You seem to get a different view through a camera, you can certainly spot flaws and mistakes more in a photograph I think.
So I laid my bottles out in the kiln...
Then I decided that I really did need numbers, at least on some of them.
Using some old copper sheet that I had rescued from a fire pit, hence the beautiful colours on it, and cut it up.
I decided on Roman Numerals as it would be much easier to cut straight lines of copper sheets, rather than cut around shaped numbers.
I don't know where my head was when I did this, as I cut enough pieces to make up numbers 1, 3, 6 and 9, it wasn't until I was placing them that I realised I need a 12 instead of a 1. thank goodness I caught that in time!
So, back to the kiln and laying out a design.