My shaders look terrible

So, I make projects, and I post pictures of my builds with shaders. Now, my main texture pack right now is Flows HD. I primarily use version 1.12.2. Now, I've used SEUS and Sildur's. Sildur's makes everything look blurry. It's terrible. And SEUS doesn't look blurry, but my builds look darker than the night. You can't see them because it's practically black. The only thing with light is the sun and the ground. But everything else is dark. Even at close up view.

Anyone know a way I can fix any of this? Or anyone knows shaders that look good with Flows HD? Thanks.