This is coming together very nicely! I haven't tried this type of crochet yet (using multiple colours at the same time) as it looks complicated, but love the effect! I can't wait to see the progress on this piece.
Being able to easily undo and redo stitches is part of why I love crochet - so easy to watch and learn, and try again! Although, there's nothing more frustrating than getting into the groove and carrying on with little attention, only to discover that you've messed up 4 rows back. haha