Is there a free version?
Yes! There's a 64x version available which you can download from Curseforge or Modrinth, however the free version doesn't come with any fancy addons and features like CTM.
Is there any way to follow the progress?
You can subscribe to the newslatter and you'll get notified on your email when a new blog releases which contains changelog, screenshots and explains what's new and or what has changed in the update.
Does this pack require additional mods?
Yes, Optifine or Puzzle mod if Iris type installation is necessary for the resource pack to load correctly, and only for Addons features to work Continuity mod if Iris type installation is required.
Why higher resolutions versions cost money?
The countless hours I've spent so far and do every week is the main reason, and it also helps me pay for the softwares required to make textures and learn more things.
How many textures are added in each update?
Each month the pack will get updated, which includes around at least 10 new textures and sometimes improvement to existing textures, CTM textures excluded of course.
Will my game really look like as it's shown in the screenshots?
If you use the recommended shader pack with the correct settings and have properly installed everything, then yes absolutely!