I've determined that my love of painting water and fish and reflective objects is all down to that play of light and how it forms shapes so well. Capturing the reflective quality is a challenge to me and a bit like a puzzle that I always enjoy tackling. Glass tends to be one of those perceived difficulties for artists who view the whole and panic, wishing there was a "glass" paint to achieve the transparent and reflective surface.
Reflective surfaces need to be studied carefully to understand just what makes up their form. When you dissect a highly reflective object in bright light, you see that the lines between values are very well marked and break the general rules in painting and drawing of not having crisp edges between values. It is that edge that defines what we see and interpret and shiny. If the bright light was not reflecting off the surface, the effect would still be there, but less intense.
Yesterday I created the study of a glass bottle (top of page) using watercolour in a 6 x 12 multimedia sketchbook. I love my studies as many of you know and wanted to see if this would be worthwhile to turn into a painting. And I believe it is.
The form and reflections work well and I've drawn the bottle again freehand with acrylic paint and blocked in some form with dilute acrylic washes. Next I'll start adding colour in oils. Acrylic backgrounds are almost another form of study, letting me block in colour quickly to set the stage for what is to come.
This is on a 9" x 12" canvas panel.