It's not really extreme, at least the ones I've seen. It's enough where you can say "Oh yeah, it does look more yellow" but isn't so extreme where it screams het caramel. My breeder male amel that is het caramel, is actually a sunglow and shows no hint. Same with other het caramels that I've hatched, they all looked "normal".
But if you look on cs.com, you'll find people that have posted comparison shots.