a bright diptych

I've been wanting to make some diptychs for a while, but wasn't quite sure how to make them. Last week, I experimented around a bit and found that I could make them in Paint very easily, so I made three of them. I thought they came out quite well, each with a great contrast and juxtaposition's. Here is one of the brightest ones. For a good diptych, it must balance and oppose each other, else it might end up being too boring.