Nicely done, with different tones/feels that seem to make GREAT use of "duality" on some level. Like one coin with one cutesy, nature, playful day/light side that reminds me of the Snuggle Bunny song "Doo Bee Doo Bee Doo" and the other high-techno/sci-fi reflectful/calm /night/dark side.
Very good art piece!