This is her own design, no pattern available. Look at her project page on Ravelry. The photos of this sweater and others are beautiful, as is the knitter! Ravelry: VirginijaSan's Vatnajökull. Ice. Stone. Water
INSPIRATION ~ This beautiful long line stranded cardigan made by Virginija Sankalienė and you can click thru to the Flikr site where this is featured. Virginija says " I took most of (the) motives from the book Latviesu Rakstaine Cimdi and improvised." Exquisite!