That second image also has a really beautiful parhelic circle (http://atoptics.co.uk/halo/pclow.htm). I wrote a post here https://steemit.com/sundog/@jonshock/when-your-crystals-are-like-plates-you-get-sundogs explaining all about the sun dog. Let me know if it is useful.
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Wow I thought this website was gone! Nice to see a few comments after not being on here for 5 months :)