Funky or subtle? You choose! No reason at all why you shouldn't do the cardi in softer colours and the jumper in acid stripes!
The fourth image shows you all you need to know about sizing, yarn quantities etc. The garments are shown made up in King Cole Fashion Aran but you could use just about any other Aran-weight yarn, subject of course to checking your tension and making sure you are happy with the drape of any substitute yarn.
If you don't mind us folding your pattern you can choose "small letter" for postage but if you don't want it folded you'll need to pick "large letter" or click & collect.