First, I used black outliner to trace the writing.
Then I used a felt tip to draw the lines for the harlequin pattern and went over this with outliner. When the outliner was dry I wiped off the pen.
Next, I added large stars using outliner.
When dry, I filled the harlequin squares with colour and waited for it to dry (again).
Then I painted the stars.
The last thing to do was to fill in the black writing (can't seem to get this image to behave!)
24hrs later, it went into the oven...
...and it's now up on Folksy. Hope you like it!