Lovely design but I had problems with gauge which varied from section to section. I juggled hook sizes using a 4.0 and 4.5. I added extra stitches separating 5 dc groups to get work to lie flat. Happily it all worked out. For final row I added an extra row of 5dc clusters to use up most of remaining yarn.

Not sure if I shall make this again because of frustration with gauge problems. I really do like this design though. Might try with different yarn.

Final size after blocking - 9 inches x 68 inches.