I helped Cel By Date and I suffered emotional damage. And I'd do it again.
I provided a free consultation as part of a limited promotion to help Cel By Date! Cel By Date's unique presentation style made it an interesting exercise. Being painted on real cels and then brought to the visual novel is a cool way to do it.
If you are working on your own visual novels, be sure to check out my Twitch channel too for live tutorials, feedback and analysis.