The 19-year-old appeared 29 times in the normal 46-game season for the Yorkshire club, impressing with his ball-carrying confidence and defensive intelligence.
Still only a teenager the future looks very bright for the Chelsea loanee, with several clubs now interested in his services for the 2022/23 campaign.
Is it a good potential move?
One of the clubs who are in pursuit of the young central defender is Everton, with Frank Lampard eager to put his Chelsea connection to good use.
The Toffees have flirted with the prospect of deploying a three-at-the-back system this season, with the addition of a cultured left-footed centre-back an exciting possibility.
Adding a player like Colwill would certainly bolster competition levels within a solid back four, whilst it would give Lampard the required flexibility to operate with three defenders.
Quiz: Can you name which club Huddersfield Town sold these 23 players to from the last decade?
Would he start?
It is a destination where he is likely to see a lot of minutes too, something that will only benefit his parent club in regards to preparing him for the rigours of top-end Premier League football.
There has been more of a noticeable push over the last couple of January transfer windows to recruit left-footed defenders, with players like Colwill a rarity in the English game.
Maybe he would have to initially bide his time when adapting to the Premier League but there is every chance that he could emerge as an integral first-teamer with the toffees.
What does he offer?
He ticks a lot of boxes when it comes to the abilities and attributes he possesses, with his maturity and confidence standing out.
Excellent in possession too, he is someone that is able to deal with the opposition pressing, whilst defensively speaking, he tends to win the majority of his individual battles.
He is also someone who is learning his trade and is improving at an exponential rate towards his incredibly high potential.