Red Alder Bowl rough turned at Chris Hansen shop in Santa Ynez from some fresh cut logs last Christmas and just recently finish turned. Around 12" (30cm) across, finished with polyurethane. Too big for my light tent had to shoot outdoors on a towel.
I live in WA so have a plentiful supply of alder and believe that it is a very underrated wood.
Its very nice to see someone else other than myself enjoy it.