Blend shots with varied focal points using Helicon Focus to get the deepest focus
A little retouching is usually in order after focus stacking. Dolkos uses it to add realism to his models; here, the buildings cast shadows on the background wall. Clone them out to make the sky seem more natural. Since the edge of the train table shows, extend it into the foreground. Go to Filter > Vanishing Point to create a grid and clone the road and sidewalk in perspective, making the picture still more believable.