FINISHING AN UNFINISHED PAINTING

I have in my studio a box labeled "Unfinished Paintings." Since I work mainly outdoors or en plein air, sometimes the weather or the time of day or a prior commitment means that I must leave the scene without completing a painting.

Today, I opened that box and took out a memory of a sunny day and a Savannah landmark, Polk's Market. Becky, Elaine and I stood in the median of Liberty Street across from the market and painted, attracting onlookers, pedestrians and Mr. Polk himself, curious to see our paintings. I must say that Becky's painting took the prize that day, and mine went home not quite done.

Here is a look at the painting in its unfinished state and a look at its current "finished" state. As finished as it's going to get, anyway!

Finished: Polk's Market, 9X12", Oil on panel

I warmed it up and gave an indication of dappled sunlight on the walls, added some details and finished the lettering on the signs. I think the finishing touches gave it a feeling of summer, with the addition of leaves on the trees, rather than the wintry feel it had before. The leaves seem to form a natural frame for the painting.
What do you think? Should I have left well enough alone? Would you have finished it differently? Is it truly finished?