UNID filefish (juvs.) ?

Raja Empat, Papua, Indonesia

Fuji F2 105 mm, 1/90 @ f/32

There's a cartoonish quality about these two juvenile filefish that I quite like, particularly the partly-illuminated fish in the rear.

I can't find them in my ID books, but it's probable that this is a common species which has different coloration in the juvenile and adult forms.