French names.. French people are very welcome, I need help?

Seeing as you're providing surnames too, I presume they're not baby names, lol. If you're thinking of names for a character in a novel or something, then go with your instinct. Eloisa Clair sounds like a good-natured woman to me (Clair meaning clear). Felix Aubin sounds more sinister than Olivier Sennet too, so go with your gut :)