Bob's preferred style is 'alla-prima' where a painting is completed wet in wet in one session which he very effectively employs in his plein air works. Although he prefers painting plein air to capture the moment, he approaches his studio works in a similar manner, albeit the larger works take more than one session.
Click on the movie above to play a 2 minute time-lapse of Bob's 1 hour painting process. (Click on the diagonal arrows on the right to go full screen)