I think mine looks much better with a mast. It looks kind of naked without the mast IMO. The second pic is my boat on the hard with some masts from the boats behind it. That looks better to me, but probably not worth the trouble/expense to rig up.
Chinook looks good . I like the color scheme . Cardude I like the look of the mast. If the one aft was shorter it would look good also. The color of your boat was the color iI was shooting for when we painted our gunwales .