Don't ever assume you're not the right fit for a gig! If your agent sent the audition to you, they have confidence in your ability to book it. Recently, I booked an explainer video gig where my first thought after receiving the audition was, "Oh man; I'm not the right fit for this." I was wrong! We should never limit our abilities in this business.
A former student of ours thought he could never do animation. His niche was medical narration. Now and then, his agent would send him an animation audition but he always turned them away. So he finally did one for the fun of it and guess what? He went on to do animation work in L.A. In voiceover, there is always a surprise waiting to happen. A talent tucked away inside you somewhere.