A small and slowly flowing drop of collected water cuts a channel though a tiny landscape of micro condensation on a window. The outside temperature is just reaching the freezing point, causing the larger mass of water to start freezing, as indicated by the crystalline structure growing inside of it. The entirety of this image measured less than an inch in height.
The colours result from background features well behind the window surface.

Canon EOS 5D, Canon 100mm USM Macro with a Canon 240 C-8 Achromatic Close-up lens.