That's not too bad really. Good pitch mostly, nice time feel. Good tone, in a limited range. Can't really what will happen when you step up to something a bit bigger.
The only thing that could be better is you need to drive the tune a little more. Which of course is not really possible with music minus one. There a couple of brief points where you come unglued -- both in pitch and time -- because you're not committed, and end up being dragged along by the music-minus-one. But that's definitely a problem with music-minus-one. The problem with a live band is to "own" the tune, and "drive" it, and interact sensitively with the musicians in your band. A totally different prospect. Sort of like the "coming unglued thing", but on a much larger scale, to the point that it's not really comparable; made considerably easier on the other hand, by a band that interacts with you.
Body and Soul. There's interesting stuff going on -- particulary in the scatting -- but the that's a tough tempo to take that tune at. Ballads are deceptively tough. Even more so at that tempo. And music-minus-one on top of that, with no feedback at all from the rythm section. Not sure it really succeeds. But again, a live band would make this so much easier (and they definitely wouldn't be playing that tune that slowly with anyone but a really great singer).
Being able to sing in tune, with decent time feel is surprisingly not a trivial accomplishment among beginner and intermediate jazz vocalists. Being able to improvise plausibly is also not a trivial accomplishment. I play with a lot of amateur jazz vocalists in my jazz community. I'd be quite content to play behind you on this tune, if you can do the same with a live band.
The "driving the tune" thing will probably be a bit of a shock though, when you step up to live musicians, after doing music minus one. Basic plot summary: as a singer, you have to lay down the tempo, and the feel, and the interpretation tune with enough presence that the musicians you're playing with can pick up on it instantly. Just step on stage: 1 ..2... 1.2.uuh uh. <sing your tune here>. And when it happens it happens. It's amazing. It takes a bit of getting used to. If you crash and burn on the first try, don't let it get to you. It's one of those things you learn by doing. And you'll quickly figure out that signing over a band that responds, is far more thrilling and interesting than playing over music-minus-one.
Definitely a good start though. Fundamentals are there, and there's enough interesting going on that you might be able to make something really good out of it. And, it case the point wasn't adequately made, you really do need to know that live music is, in many ways, much easier, than music-minus-one.