This is an interesting jumper constructions with my take on a traditional log cabin block.
It is worked in two sections, raglan bit and log cabin squares and is then joined together.
Sleeves are worked separately .

Sizes include S, M, L, XL
Jumper is meant to have a looser fit and the bust circumference upon blocking are :
S - 92 cm / 36.2 “.
M - 102 cm / 40.1 “.
L - 117 cm / 46 “.
XL - 135 cm / 53.1 “.

Although my version uses plenty of colour it can be made with a lot less contrast .
Jumper is knitted on 4mm/US 6 needles and DK weight yarn.
Skill level is advanced beginner and is very simple to follow with a few new techniques for which i have included tutorial links.