I don't fly an Airbus, but I was a "newbie" not too long ago (and in the presence of some of the guys here, I'll be considered a newbie for quite some time).
That being said, I think you're just fine, when I had 550TT, I didn't know what I didn't know yet. When I had 350hr on the jet, I was only just starting to get comfortable with landing it. Even then, I had a long way to go before saying I was comfortable landing the thing.
Two weeks ago, I was feeling pretty comfortable, with well over 1000hr in the jet. I hadn't a care in the world as I crossed the fence on a calm day. The subsequent landing was a source of great amusement for my Captain, and caused a flight attendant to comment on my technique
Sometimes I float a little, sometimes it works well, sometimes a firm landing.
Sounds about normal for any of the students I taught to fly. I'd say that's fairly typical as you transition to a new plane.