"Visages", his 1999 piece for 2 tubas and 2 euphoniums, was described as "astringent, often whimsical but well written for these instruments". Puw said that in the piece "Freedom is granted to the performers to make any subtle facial expressions that add to the musical interpretation". Puw describes (a piece for solo piano, composed for the 2000 Bangor New Music Festival) as an "intimate reflection" upon the music of, and a tribute to, Robert Schumann, his "intricate compositional style" and "world of delicate expression". The music becomes "simpler and softer" throughout the piece, moving from the "rhythmic complexity" of the opening bars through to slow quavers transforming into triplets. An ensemble piece, "different light" (for clarinet, violin, cello and piano) was "inspired by the idea of moving a picture from one place to another, be it to another house, or from one room to the next, or even from one wall to another." As the picture is moved, it looks the same but is perceived in a different light. Puw attempts to convey this in musical terms by having each instrument enter separately with its own musical phrase in the first part of the piece. Then, in the second part of the piece, all the thematic material is repeated with the instruments playing simultaneously, so that the music is similarly perceived in a different light. "different light" was featured at the 2001 "UKwithNY" festival at the Angel Orensanz Center in New York City. His 2005 composition for the Bangor New Music Festival, "Stereo Type", was written for amplified typewriters and tape. It was premiered by School of Music students from Bangor University in the Deiniol Shopping Centre, Bangor, on 5 March 2005.