I think they were going for something like RDM with the Palette stance switching but it feels really lackluster. Like I can only imagine two situations where you'd ever want to be on instant casting mode; you want to interrupt someone using a potion or you're running away spamming Recuperate and you want some extra healing from Holy.

Painting feels like a detriment more than an integral part of the job. It's just gates locking some oGCDs that feel really weak themselves until you get to the laser ones.

Just throwing some ideas out there, maybe having a painting stocked should grant you a passive effect to yourself similar to what its oGCD effect is. And I think they should be playing around more with the elementalist theme PCT has going on. For example, Landscape Painting that alternates between "Starry Sky and "Sunny Sky" and have an oGCD that places a ground effect depending on the landscape you painted. Starry Sky's effect increases damage taken against ice, earth, and lightning attacks and Sunny Sky increases damage taken against fire, wind, and water attacks.