I've bought a new bottle for my Astro lamp. It was pretty hard to record it's true colors but in reality it looks stunning and less "yellowish". It's a nice amber which changes into a slight reddish color tint when the wax rises up.
Related: https://youtu.be/IhVw1RWXmbM
In my opinion I like Green/Blue a little more since it's better for "relaxing" and also brighter. Both colors have their own charm I just wish they still would produce Blue/Yellow bottles.