The screenshots in the thread are from the first version of the game, so it's been 8 years now. I honestly don't want to download and try it without knowing how the current and completed game looks like.
Those screenshots are still relevant, they are from scenes that are still in the game.
The game is very demanding of computers: if your computer is weak, you can play it with very low-res (which looks even worse than the screenshots – it's kind of like Minecraft); at the other end of the spectrum, if your computer is NASA-quality, you can play the gamewith ultra-high definition, which defines every blade of grass, every hair, every pube, etc.
The screenshots posted in the OP are from a quality somewhere in the middle between those two extremes.
[Can't remember if there are 5 or 6 different settings for image resolution.]