even though the picture is not real, that's a truly beautiful creature! to be honest, i would personally prefer blue bees over yellow. there's just something about the color blue...
Why would you say that the picture is not real? That is a bold claim to make without any evidence, especially since you are incorrect. For anyone curious, image was originally published in the scientific journal ZooKeys. (https://zookeys.pensoft.net/articles.php?id=2987)
The color is absolutely real. Many Hymenoptera, and other insects have this coloration. It structural, not pigment, bouncing light around via microscopic grooves and ridges. Fun fact, most Hymenoptera are also very very small, ~2mm or so, and some the chalcid, or jewel-wasps are very often iridescent.
Someone just pulled off this same effect with Chocolate a while back. [1] (NTY paywall]