DA score with under levelled team

As the reset is nearly in I thought I’d give the first DA boss (begins with K) a try to see how hard it was to see if I could squeeze out some more polychrome. With a lvl 50 M0W1 Claret, lvl 50 Nicole, lvl 40 Anby I managed to get ~9k score after a few tries of not passing.

I’m just wondering if that’s a good score? Like if I had a fully levelled team to 60, would that make it an easy 3* pass for me? I wasn’t expecting to even be able to get 1 star with my makeshift team for Claret not even max level when I saw the boss was lvl 70 (I’m new)