Well, let me guess technically. You have some photos with the aperture wide open, so you have almost no depth of field and it gets blurry behind.
In this one you have a higher diaphragm value because you see more depth.
I'm pretty sure you used higher shutter speeds for the larger aperture. On the other hand, in that one I pointed out, you had to lower the shutter speed a bit.
(For the record, I know nothing about photography.)
I don't know what all that means...I just twiddle knobs, dials and buttons. 😏
😑 Forget about it.
They are very nice and you do very well to use the light box. It's a little tricky because of the reflections, but if you use that to your advantage, as you have done, you get very good results.
👏
I struggle with the light-ring to be honest, a lot of the time I turn it off and shoot without it, or use a different light source. It has its uses though.
Thanks for your favourable comments, coming from a photographer like you it means something.