Oil pastel on 100% cotton A3 Khadi 640 gsm paper. The thickness of this paper allows it to stand alone but works just as well framed.
Khadi papers are beautifully handmade and produced sheet by sheet, so there will be slight irregularity to an exact A3 size. For framing, I recommend placing the piece in front of a frame mount to show off the beautiful edges.
Frame available at florenceandblank.com