William Ryan's tugboat paintings are a celebration of the working waterfront, capturing the rugged charm and powerful presence of these essential vessels. He often portrays tugboats against dramatic skies or amidst the bustling activity of harbors, emphasizing their strength and functionality. Ryan's realistic style is marked by meticulous attention to detail, from the intricate rigging to the weathered hulls, conveying a sense of authenticity and firsthand observation. His use of light and shadow adds depth and dimension, bringing the scenes to life and evoking the maritime atmosphere with a palpable sense of energy and history.