Remnants of the Mana War
I think bards are cool. And I’d totally play one. That being said, D&D 5th makes them fairly magical based.
I would probably allow the bardic music, but you would not gain the spellcasting stuff, which would be a big disadvantage. Once you DO learn magic, however, being a bard and some of the abilities you get might make you a bit better at magic. You’d be able to cast more spells, and have more prepared, but you wouldn’t know very many spells for a while…
College of Lore – Sure, “Additional Magical Secrets” I would change.
College of Valor – yes