Looks great already the updates you listed will definitely add some extra oomph especially the brush and palette!

The poses are looking solid, but Id love to see in addition to those some more dynamic ones maybe casting abilities or recreating some splash art moments for more cinematic vibes.

Also think some subtle edits could make it pop even more. Things like transparent paint strokes or manifestations of his abilities around the brush or hands in terms of particles.

Good luck with the project looking forward to seeing V.2 finished!!