They're all the 146 'Legrand' size; the classic torpedo/cigar shape that I love. The blue one is called the 'Blue Hour', and it a guilloche brass pen body, with blue laquer over it. Platinum plated trim and 18k gold nib. The bottom one is called 'Prisma' and has a cap made of black ceramic, the barrel is stainless steel, 18k nib. The one on the left is called 'Fibre' from what I recall, it's a sterling silver cap and barrel, with an inlay of guilloche carbon fibre that has a clear laquer over it; same 18k nib on this one as well. I snapped this quick pic, but should have at least wiped them down first so you can't see the fingerprints.
Thanks for looking Nico!
Douglas