He's really young. Born in 08 so the videos may be from before a growth spurt.
This is a very young player. He plays in the top Slovenian league, but with diminished stats at his current age (and mop-up time stats in Euro Cup):
Adriatic League (ABA) (14 games): Averaging 4.1 points, 2.6 rebounds, and 0.7 assists in 12.9 minutes per game, while shooting 48.9% from the field. EuroCup (10 games): Averaging 3.2 points and 1.8 rebounds in 6.9 minutes per game, shooting 61.1% from two-point range.
Would think he'd want a US college team where he could play a ton. He is going to be raw and talented; not a formula for winning if he's playing 25+ mpg, and not a place he'd want to be if he's playing 10 mpg.
UK needs to find a 23 year old grizzled Euro vet looking for a payday. 18 year olds will take a year or two to develop.