I think it looks like a fantastic real-time tool similar to ENB Series in game tool. Regarding the way mount and blade and Morrowind had a similar look after RTX. I would say that comes down more to the preference and taste of the modder. It was clear that light source color and output could be adjusted. So I think this was just coincidence that both looked similar. Im sure the ability to adjust parameters exists. If I was personally creating an RTX overhaul. I would put focus primarily on realism of shadows and natural lighting.