I've been using Amaco underglazes in both the watercolor and jar forms along with some cobalt stain. The images are all from photos of my garden that I've taken with my phone over the past couple of years. I hope to to some more plates with a dogwood pattern, then we'll see how they come out of the fire.
There are sometimes just too many choices! When I was teaching at school glazing was often a just dip and go kind of thing - but now I have the ability to think about it. I am leaning, however, towards what I do best -- painting with the underglazes as watercolor.
Finding a source photo to create an image that is linear, but literal and evocative without being either too descriptive or too decorative is the goal.
The cobalt will be bright - but it difficult to know exactly how the yellow and pink will hold up at cone five... they will be covered in clear glaze and they are made of a very white clay - seattle pottery's Sea-Mix five.
Some source photos -- Walking around I am always looking for patterns in the way living plants organize themselves. Having these cameras in our pockets all the time is an extraordinary tool. I can go back to many different times and spaces for imagery.