So is the colorwork in this sweater - fair isle? I’m so confused about what fair isle is and the different between it and stranded colorwork.

Clue 4: loving the pacing of the clues, and the pattern!

I'm keen to see which colours you picked as your cD for the neck?

So done Clue 3 bar the neck. I have another paler blue which I could use. This navy doesn’t look good to me. Too dark me thinks. ? Think my tension has improved in set of colour work. Certainly better than clue 2. I reasonably happy though. Just the neck to decide in stick with the navy or use the lighter blue or just use the yellow an be done 🤷🏻‍♀️

Dear Reader, it is better to have knitted and frogged, than to never have tinked at all! Having gone back to basics and my original gauge, and with help from @Zanete Hussain (thank you so much), I frogged back to the beginning of the short rows to correct lumpiness and errors. Changing sizes was therefore easy, from 3 to 4, as the pattern was identical at that stage. I dreaded doing it with two jumpers on the go; the second one had insurmountable loose tension problems from the chenille yarn. I felt that all my progress was lost and was feeling low. To combat the gloom I reknit jumper 2 from scratch, and steam blocked after clue 1 was finished; with careful concentration, the problem was resolved and I felt better. While that was drying, I reknit jumper 1 as size 4. It's now complete up to clue 3, and I'm really happy with it; the knitting lies flat without blocking, it's smooth and soft to the hand, I can't stop stroking it! It was totally worth it to go back and fix. I've learned much about why I knit, what my expectations are, and how to approach my knitting more mindfully. Now that I've got more stitch markers, I can catch up on jumper 2 before the release of clue 4. I'm happy only having one up to date, as the second is a present with no time constraints.