It’s not a difficult project per se but you do need to pay attention!

Used German Twisted Cast On.
Slipped last stitch in each row purl wise with yarn in front.
Rows 1-7 Soft Linen Purple
Rows 8-20 Bella Lino Violetta
Rows 21-24 Soft Linen Titian Blue
Rows 25-28 Soft Linen Purple
Rows 29-38 Bella Lino Violetta
Rows 39-44 Soft Linen Titian Blue
Rows 45-48 Soft Linen Purple
Rows 49-52 Bella Lino Violetta
Rows 53-59 Soft Linen Titian Blue
Rows 60-66 Bella Lino Violetta
Rows 67-72 Soft Linen Purple
Rows 73-78 Soft Linen Titian Blue
Rows 79-90 Bella Lino Violetta
Rows 91-98 Soft Linen Titian Blue
Bind off with Simple Stretchy Bind Off.

In order to make it with three balls of yarn next time, I would skip rows 10-13, 29-30, 37-40, 57-58, and 82-85. This will make it about 2 inches narrower (or so).