Well, it's not anywhere near 20 minute sketching, but I have been busy painting signs. Both signs are large and double-sided, which is really equivalent to painting two signs apiece. They are done in a durable combination of house paint and artist acrylic, which is also the combo I use for mural painting.
The greenhouse sign was originally painted by me ten years ago, but weathering over the years caused some fading. The bright flowers and detail lines were due for a touch up, and it looks as good as new again!