dpullum Loc: Tampa Florida

Composition suggestion: The bridge is not the subject of this story, the clouds are. Crop the left side showing only 1/4 the distance to the left of the middle tall support. Next Flip horizontally so that the eye follows the bridge and the tall bridge upright point to the sky. I would also clone out the shore line beyond the start of the bridge; those buildings add nothing to the visual story. Same can be said of lower half of the water; crop it.

JohnCl Loc: Central Arizona

To me, color is irrelevant in this image. I would convert to black and white and make it very dramatic. Then crop to emphasize the contrast between the huge cloud and the small sailboat.

wayne barnett Loc: Grants Pass, Oregon

The photo is alright as is. The issue that I see is the title that brings attention to the sailboat. Try a title such as 'The Storm Is upon Us"' which gives a general title to the scene then the smaller elements become part of the larger theme.