This is a 33" wreath, just like the ones I exhibit in art galleries. It is printed on eco-friendly 3mm rigid paper board, with edges that are cut to shape and painted. The piece has D rings mounted on the back for hanging.
 
This piece is a composit I built from a specimen of moss that was mounted to a microscope slide in 1849, found in a collection of antique slides. More details about this wreath in particular can be found here.
 
The Great Wreaths Project is an exploration and a celebration of the created universe with all its truth and beauty. The wreaths are a reflection on the infinitude and cyclicality of existence and the unity and universality of matter both here on earth and in the cosmos. You can find out more about this project here.