The corn fed caddis was the subject of a previous evening that clashed with a footy match. https://canberra-anglers.asn.au/blog/fly-tying-23-apr-sunken-ant-corn-fed-caddis/
For sparkle gnat, see https://www.flyfishfood.com/blogs/dry-fly-tutorials/sparkle-gnat
Colours for sparkle gnat depends on what material you have and personal preferences.
Some examples from the night
Keyword dryfly wetfly