You'll need:
400g of mixed yarn (50% cotton, 50% polyacryl; 600m/100g) - the yarn should be folded in two;
Knitting needles (straight and circle) 2,5.
The main ornament used - stockinette stitch. For plackets and cuffs - 2 x 2 rib.
Stitches control: 27 sts x 36 rows = 10 x 10 cm.
Back
Cast on 90 sts with brown yarn and knit 10 cm with 2 x 2 rib. Then, continue work with blue yarn to the length of 20 cm. At this place make fancy paw ornament due to the scheme 1 with brown yarn.
At the same time, at 23 cm bind off the sts for making arm-hole. Bind off 1 x 3 sts, 1 x 2 sts and 1 x 1 st from both side in a row. Then, knit straight, without any increases or decreases. When the length is 37 cm, bind off the central 22 sts for the neck hole, after that knit both parts of back separately. Bind off 2 x 2 sts in a row to make neck hole rounder. Bind off the rest sts of shoulders at 39 cm.
Front
Then, make left front. Cast on 42 sts and knit 10 rows with rib. After that, turn to blue yarn, by means of which knit 23 cm and start knitting the ornament from the scheme 2.
At this height, bind off 1 x 3 sts, 1 x 2 sts and 1 x 1 sts in a roe from right side. As a result, you'll get arm-hole for the left front. At the same time, make neck-hole chamfer: bind off 1 st 12 times in every 4th row. Knit to 39 cm, after that bind off the last sts of the row. Right front is made in symmetry with the left, but don't make fancy pattern on it.
Sleeves
Cast on 50 sts with brown yarn and knit 10 rows of 2 x 2 rib for one sleeve. Then, turn to blue yarn and knit straight wit stockinette stitch, making increases for sleeve chamfers from both sides of st. Increase 1 st 10 times in every 8th row. At 25 cm height bind off the sts for making sleeve head. Bind off 1 x 3 sts, 1 x 2 sts, 13 x 1 st from both sides in a row. Then, bind off 3 sts once, 5 sts once and 7 sts once.
Assembly
Make shoulder seams, sew the sleeves, then make side and sleeve seams. To form placket and cuffs, cast on st along the edges of front and neck hole and knit 10 roes with rib with brown yarn. In the process of knitting left front you should make make the holes for buttons. Bind off 13th, 14th and 15th sts in 4th row of placket. In the 5th row, cast on 3 sts above previously bound. In the end of work sew 4 buttons on the right front.