Hello, Gidi.
Those are some very nice colors in your dione. I'm glad there are some people in Europe and Russia that are working with this species. It is extremely variable and make great pets. Someday I hope it will be more popular in the U. S.
I only keep the South Korean dione now. I haven't bred them since 2001, 2002, and there are a couple others who are raising them too. These aren't very good pictures, but they show some characteristics, like body shape, head shape, scales, etc. The first two are my 2001 male and female, ready to breed next spring...

Even with just one race, South Koreans, there can be much variety. Mine are from one locale, Seoul, yet some are reddish-brown and some are yellowish in background...

I like the spearpoint on the head. They are good representatives of the genus, Elaphe. No matter what coloration they are they are fun to work with and handle also. The South Koreans are a little more robust than Western races, I think. The original female reached 46 inches. Here's a nice male offspring from the 2002 clutch...

Another race I worked with for awhile was from Eastern China. They were quite different from the South Koreans, but colorful. Yours look like they could have some Chinese influence?
I love the striped dione. That snake is very pretty..wish I had one. Also, the orange snakes have lots of cool orange color. It would be great to produce a line with high orange in the U. S. too. I hope you and you father can come to the United States someday. Good luck with all your projects and hope you post more pics soon.
Terry
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Ratsnake Haven: Calico and albino Chinese stripe-tailed ratsnakes, Mandarin ratsnakes, Chinese twin-spotted ratsnakes, South Korean Dione's ratsnake, Great Plains ratsnakes and corns 