Great work, I think you've created a very realistic stained glass appearance. The contrast between both halves is great, and I love how the colors compliment each other. Also, the light shining into the darkness is a great touch!
Absolutely wonderful! I love the detail you put in the stained glass, and how there's even light shining through! Most artists that do stained glass forget the light behind it, and the light makes it much more striking.