When I put the Minecraft song "Comforting Memories" by Kumi Tanioka over this shader pack, it literally wants to make me cry.

Woah that looks really realistic

If I had that texture pack it would spontaneously combust and light the night sky in fact in space

If anyone's wondering, the shader pack in this screenshot is "Sildur's Vibrant." (With slightly customized settings)

P.s. I don't recommend this for use on anything less than a mid-tier gaming PC. You'll have a hard time. Sorry. I was in that position for years, so I know how it feels.