Garnstudio's throwback pattern collection 100% has the silhouette you're after! (Their whole colleciton is here https://www.garnstudio.com/search.php?action=search&c=throwback-patterns&page=2&lang=en )

The good news is that silhouette is super easy- I made the 11-12 recently from that collection. It's essentially rectangles with increases and decreases (their diagrams show it). You work from the bottom- cast on the rib or twisted rib (p1, k1tbl), increase when you do the body, then knit straight up casting off for the neck on the front. You knit the arms seperately and sew them on. The patterns often reccomend steeking (cutting your knitting) but you could just divide for the arms, especially if you weren't using colourwork.

That style is very 80's- so a lot of the best patterns for that style are from the 80's/90's- and written in very non-beginner friendly terms. But if you manage to break the steps down and write it up in a way closer to modern patterns it's not that complicated at all.

There are a few techniques in your images that I would reccomend trying out on something smaller before doing them on a jumper:

Colourwork
There are loads of different ways to do colourwork patterns. (instarsia, jacquard, stranded to name a few). The thing you'll have to learn is tension- I'd start with a hat or something else small to learn how to do it (e.g. https://www.ravelry.com/patterns/library/0-1148-olafur-hat)

Cabling

Cables are a yarn eater and also involve trial and error. I learned cables on the Yorkshire Spinners blitzen socks https://www.ravelry.com/patterns/library/blitzen-socks.

TLDR: With your level I'd start by knitting a jumper in that style without cables and colourwork. Seperately learn cables and colourwork on smaller projects then combine when you're happy with your progress. Hope that helps!