What color is your siding? On my monitor it looks like a gray/green, or is it a true gray?
I would not do columns....I like the openness of the porch.
Paint the garage door the same color as the siding so it is not a prominent feature and the eye goes to the porch/front door.
I think I would put a brighter color on the front door since it's already recessed, along with colorful pots and flowers.
The house would look nice with trim or shutters but I think shutters would dress it up a little more. Try to find pics of houses with both and see which look you like better.
It's going to be a pretty house!
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Grids
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