even if it's a night scene, I think you could still stretch to fit the entire value range here--maybe some candlelight in windows, rim lighting on that figure, I think that might really add another dimension to this
Where is the ship going? If it is trying to dock it needs a place to do that. Also I'm no expert on sailing but my guess is that if the sails are that full it would probably be going pretty fast right into the wall. I honestly don't know how old sailing vessels made it into port.