Wyll would be improved by making his soul darker, not his skin whiter.
If you need a flamboyant bard companion, petition to have Volo recruitable into the party.
Volo read about it in a book. Wyll’s been, you know, fighting in the Hells for ten years. I haven’t gotten any flamboyance.
Are you guys datamining dialogue trees to find something to whine about? Ayll does make decent Lore Bard caster with Shield prof, and he can even use Sortow there if you want. But Lore Bard doesn’t get extra attack so more a caster.
Wyll makes perfect sense as a 3 Warlock, the rest in Swords Bard, and fighting with a rapier. Actually fits his voice lines better.
The point is that his tone and speech makes no sense for a Warlock, and someone like him wouldn't become a Warlock. You need a bit more edge and a bit more hardness to take the martyrdom opportunity he supposedly took on short notice in his teens or whatever. A guy like him, or a guy like how he sounds, would actually reject the deal and call the police to handle it. He doesn't have enough Dirty Harry in him. He could've been Batman, for example. Oohh, the guards can't handle it, maybe a guard is one of the cultists even, maybe a guard would've opened the door to the city, my father the politician can't see the rot in the system, so I'll sacrifice to save the city by myself. Just anything that isn't generic Goodguy Goodman Goodnovski.