Both the sailboat and the flags on top of the bridge show the presence and effect of the wind. Fairly well balanced composition. Maybe a bit oversharpened but it's sometimes hard to tell when limited to this size presentation.
Overall I like this. I am having a hard time getting "comfortable" in viewing this as I'm not sure where to rest my eyes and focus. Sailboat, bridge, sailboat, bridge... :D Something feels a little hazy and muted, almost like there was some heavy glare to cut thru. I'd say more contrast would cut it down some, but the contrast looks pretty good now. Oh well, just some observations. Good luck in the challenge.