This is a short tutorial about how to bring some night and mystery into your bright sunny photo. Here is the photo I took in the forest near my home. IMPORTANT NOTE - all steps below are true only for this very photo! This tutorial is only to describe general approach. Trust your eyes when applying effects.

Use Sharpen effect several times, until the snow starts to glow.

Create new layer, fill with color (in this case, blue).

Set layer blend mode to Overlay and opacity to 50%.

Duplicate this layer, so that color overlay is more vivid.

If you want to make image a bit brighter, duplicate layer again, set its blend mode to Screen, and opacity to 30%.

Now we want to add some light sparks. For that, we need a custom brush. Create new (square) document, select Shape tool, choose Polygon, set Side to 4, and in Polygon options, set indent to 93 and check Star checkbox.