This pattern can be made to fit three sizes, small (S), medium (M), and large (L). For reference the model is wearing a size small, is 111 lbs and 5’5.Please note; measurements may vary depending on knitter gage. This pattern was knit in the gauge: 17 stitches in stockinette = 7.5 inches
Small
Size small has 6 trees measuring 45 inches around the stomach.
Medium
Size medium has 7 trees measuring 52.5 inches around the stomach.
Large
Size large has 8 tree measuring 60 inches around the stomach.
For extra small or extra large simply subtract or add 17 stitches per tree while casting on. Sleeve can easily be adjusted as well.

Supplies you will need:
Circular knitting needles: U.S. Size 11 / 8.0 mm with a 36 inch cord.
For yoke sweaters I prefer the type of circular needles that have an interchangeable cord size.
Yarn Weight: 5 Bulky
Yarn Fiber: Acrylic
Amount of yarn (assuming most skeins are 200-250 yards/meters): 1 skein of red, 1 skein of green.
3 Skeins of white (S)
3-4 Skeins of white (M)
4-5 Skeins of white (L)
Scissors
Scrap yarn (this will be used as a placeholder and will thrown out after)
Stitch markers
Tapestry needles

Here is a list of skills you will need to complete this project. I find YouTube to be a helpful resource, but I also recommend supporting knitting authors and purchasing knitting books.
Colorworking
Decreasing
Grafting the underarms
Increasing
Joining the yoke
Long tail cast on
Magic Loop method
Ribbing
Weaving in loose ends