This is how I made it:
New canvas
Filter > Render > Clouds (black & white)
Filter > Pixelate > Crystallize (fairly large size crystals)
Filter > Artistic > Plastic Wrap
Filter > Liquify
Used the 'shift pixels' tool or something like that. Started from the top left corner, and dragged across to the top right corner. Did another row and so on. Got the effect of staircase with a refelection on them (where I got the glass idea from).
Image > Adjustments > Hue, Saturation
Made picture a bit brighter with the lighting scoll bar.
Image > Adjustments > Color Balance
Gave it a blue-ish tint using the midtones and shadows sections.