Good job on the evasive action, and I'm glad it was a miss.

The taillight in front doesn't immediately strike me as a good idea. The red color could cause confusion or indecision in intersections, which is contrary to what you want. I'd stick with white. Or perhaps a different non-red color if that is legal in your area.

I know it can be hard, but try not to let it rattle you to the point that it is distracting your current ride. Learn what you can, make any appropriate changes to your ride, but keep your concentration 100% on the current ride when you're on the road.

Again, good job on the evasive action.