Is my iPhone X camera acting up to specs?

I'm wondering if my iPhone X camera is normal or is maybe a "bit off" or not, and if there are any tests I can do to determine one way or the other.

It's not clear to me that there is anything wrong, per se. I'm coming from an iPhone 7 Plus, and unfortunately I don't have that iPhone anymore so I can't do side-by-side comparisons.

I know the camera specs are similar, but the iPhone X has stabilization for both lenses, and the iPhone 7 Plus only had it for one. And also the aperture on one of the lenses is larger, so it's supposed to be somewhat better for low light photos.

I'm not saying the photos I'm taking are bad. It's not obvious there is necessarily anything wrong. But they are also not obviously better than the ones I took with my 7 Plus. In fact, it's my impression that parts or all of many of the photos I take seem a bit blurry to me. I was anticipating sharper images because of the improved optical stabilization.

Here's a photo of my java sparrow for example. This is not in portrait mode. But the depth of field seems really shallow, so parts of Monta seems somewhat blurry, don't you think? His feet are especially blurry. But even his beak and eyes aren't very sharp. I did try to hold-and-touch to fix focus on this head.

I have other examples as well. Some seem sharper, but nothing to write home about. The 2nd photo was taken in my volunteer class yesterday, with good lighting. Again, it's not a bad picture, per se. But the subject doesn't seem extremely sharp and in focus to me. Am I expecting too much?

Also, if I look at the pictures larger on my iPhone they seem somewhat grainy.

Anyway, I was wondering several things:

(1) Is this basically normal, and everything is ok, or is my camera lens a "bit off"?

(2) These were Live Photos. Should I expect the same focus and quality with Live Photos that I do with Live Photos turned off?

(3) Are there additional manual settings I could explore with the standard Camera app?

(4) Are there other tests I can do to make sure everything is up to par?

Again, I'm not saying there is anything especially wrong. I just haven't been "wowed" yet.

The third and final photo was taken in my house entrance at night with no lights on in the entrance way. So it was actually quite dark, with just some light leaking in from the next room. This doesn't seem too bad I guess for such low light.

I did take a nice selfie in Portrait Mode and was pleased with that.

Opinions welcome.

Thanks,

doug