It's great fun sending and receiving partially done tiles, ATCs, and occasionally other zentangle art from fellow aficionados around the world. Here are some recent pieces, as received and as finished.
From Yvonne Westover in Ontario Canada, on a linen-textured paper:
From Kelly Barone, on an interesting soft paper with seeds in it:
From Bonnie Baskin for the 'Summer' theme swap:
From Diana Claus:
From Janet Day in Washington, USA:
From Pat Floerke in Nicaragua:
From Prairie Kittin in Washington, USA: