Usually when I have an idea for a skin I just go for a quick visualization to get the idea across.
This time I wanted to push it further, including documentation and spell effect.

Also, you can show your support for this idea in the official LoL forum here:
https://boards.na.leagueoflegends.com/en/c/skin-champion-concepts/2NNY0A0A-skin-idea-ghost-janna