Easy Crochet Sweater Vest (Tunisian knit stitch)

Hi everyone!
My name is Maddie and I make crochet tutorials. This is my first one, so please let me know if you have any advice on how to improve :)
Timestamps:
00:00 Intro
00:37 Equipment and yarn
01:31 Ribbing (waistband)
06:50 Front piece
31:49 Back piece
32:30 Attaching the two pieces
35:40 Neckline/ribbed neck
46:10 Arms (ribbing)
I ended up using 8 balls of yarn (with a bit left over) 🧶 if you don’t use two yarns at they same time like I did, 4 would probably be enough (if you use the same crochet size as I did).
Link to the yarn I used: hobbii.com/yar...
Ribbon is 46-47 cm (I measured it after I used the vest a few times, so could have been closer to 45 when it was made due to it expanding a bit)