I'm finishing up the cover for UY 153 in which Usagi meets some kappa.
The art is 15.5x10" on 11x17" two ply, 500 series, cold press Strathmore bristol.
Very loose pencils sketched with a .3 2H mechanical pencil
Lines are reinforced with a .5 HB pencil.
Inked with a Koh-i-Noor Artpen and Badger Black Opaque ink (old formula). The border is inked with a 3.5 Technical pen.
Finished cover inked with a Koh-i-Noor Artpen and a Pentel Brush Pen for the solid blacks. Both are filled with Badger Black Opaque ink (old formula)
That is the pen I usually use for drawing--Koh-i-Noor Artpen. I use two--an older one with a broken-in flexible nib for a stronger and more varied line, and a newer one with a more rigid nib for finer lines. Unfortunately, these are no longer available through stores.