I have some critiques about this:
The puddles IMO look ugly as round smooth textured shapes. They probably should be retextured and made square or at least pixelated.
How is the weather system with lag?
Also, I would suggest making your own mod for mesecraft weather: Use runs’ climatez (very low lag, good effects), and modify it to use the lightning from this mod. Do we even need the puddles? If so, then bring that over from this mod too. I have been using climatez on Centeria without trouble.