@JordiGH @ticky dang that's actually worked surprisingly well.
if that blurring works with say a screenshot of Sonic 1's waterfalls in Green Hill Zone Act 2 where you can walk in front of them, then job's a good'un and the blurring works fine!
I'd say that one worked good!
@Nine @ticky I played a bit more with. A simple blur filter followed by a sharpening filter makes the thing almost look like it was naturally drawn with many colours.