Sirona - 11 x 14 Matt Hughes Night has just fallen and Sirona, the heavenly Celtic goddess of astronomy, is filling the sky with stars through her dreams. Sirona was created using Colored Pencil. Color Laser print is printed on Acid Free paper that will not yellow. If framed it should not deteriorate in any way. The ink is put on in a heat process. Do not store in plastic in excessive heat. Color Laser prints come in a sealed plastic sleeve with backing board and information sheet about the artist.