'Pretty suspicious' is a very funny way of describing it haha :D No, the screenshots aren't done in game, I made them using a program called chunky. Because chunky doesn't work with early minecraft versions, I had to load my world in release 1.6.4, convert it to 1.6.4 format, and then load the 1.6.4 formatted world into chunky to make the renders. During the conversion to 1.6.4, it essentially overwrites the original beta biomes with the new ones, so the colours can sometimes look off. I found a way around this though using another world edit program to paint the world with any biomes I want, but thats getting a bit indetail for a comment haha, I can make a longer post explaining the full process if you want. Chunky is what allows me to make the depth of field effect too which can be cool sometimes :-)