I'm really glad that you liked the looks of my game, as one of my objectives was to get a decent looking 3d game while using as little graphical resources as possible since the integrated graphics that I have is an HD 8470D which isn't that great but not particularly terrible either.
And I'm really really sorry for the long extraction times, I came aware of this issue only after the jam was over and a friend pointed me out that he had to wait almost a whole hour just to test my game. I will probably update the page to an alternative download with a zip which extracts way faster than a 7z.