The colors are definitely real, I don't know which green and pink one you're referring to, but the red and orange I would assume is the second picture, and those are Emerald Tree Boas.(EDIT: Unless you were looking at the site link pictures, I can't confirm those, but with a REALLY nice camera I'm sure lots of colors you wouldn't think of would get picked up.)
Malaysian Blue Coral's are SOOOO beautiful, and that's a gorgeous shot he got. He was lucky he wasn't bitten by that one, as of right now (if I remember correctly) there is no effective A/V for them.