I loved the shapes of this rhododendron bud (yes they're just flowering now!) and thought it would make a good line drawing. I often put images in Photoshop and tinker with them to get an idea of what mediums they would translate into or to experiment with colours and shapes before I start a drawing. I tried a few filters and colours within shadows, midtones and highlights and this was the result which pretty much follows through with my original thoughts around this piece and its potential.
Using a graphics program gives me the ability to intensify colours and values to enable more accurate rendering of the final image or provide more inspiration to veer off the beaten track. I'm sure that the masters would have spent time playing with PS if they'd had computers too.