I second the broccoli green shinies, for Espeon and Dragonite. Espeon's fate is especially cruel because Umbreon has such a beautiful shiny. You don't treat two brothers like that, be good to one and screw over the other.
I am not an artist but maybe make Espeon the tan color of the desert sand with brilliant golden yellows eyes and inner ears to be like sunlight since Umbreon is the dark and the moonlight, while espeon represents he morning sun. The sun was worshipped in ancient Egypt in the form of the God Ra, so as homage to the Egyptians I would turn the stone on Espeon's forehead blue to evoke the sky or the stone Lapis Lazuli that was prized in Egyptian art and jewelry.
For Dragonite anything would be an improvement over the green paintbrush job he was saddled with, but why not just keep him pink? He'd look nice following the same pink and gold color scheme as his pre-evolutions.
Another unflattering green shiny I want to get a hold of is Nidoqueen. Nidoking is the king and Nidoqueen is the queen, he's the male, she is the female, the brother and sister, the husband and wife, the yin and the yang. They are opposites and complimentary. When Nidoking is shiny he takes on Nidoqueen's colors, he becomes blue. It looks good by the way. Let Nidoqueen take on his colors and become purple with the white chest and dark blue inner ears. They now interchange, I think that would be cool. She wears the pants this time!