Good to see you're keeping up with this. Just to note there is not a need to measure and get things mm correct, our bodies aren't always symmetrical so it comes down to "How it looks when worn" rather than "How its worn when measured".
You're spacing looks good, it changes at different angles so we just need to ensure it all matches when the photo is taken head on.
As for the chest plate floating I see you noted it was from the tape; I would strongly urge you to photograph it with the attachment method before you paint. As they have been attached now they wouldn't be accepted so I couldn't in good faith tell you to paint. If you can show they are shaped to you and fitted then we are good, otherwise some further shaping could be needed.
Your backplate is going to need further shaping. The very top plate was positioned too low when it was shaped, so it is going to need more shaping in the bottom half to compensate as its now floating away (Check the bottom outer corners of the top plate). The top half of it is shaped nicely, you have that edge following your shoulder and closing in at the neck, which is awesome to see.
What is of more concern to me is whether you are standing at an odd angle in your back plate photo, or (what I actually think is) that your entire back plate is trailing over to the left (especially looking at where the centre of the vest is for the attachment). I would suggest to take the bottom two plates out and concentrate on getting that top plate centred and those edges heated and shaped in. Then get the secondary plate under it, centred and shaped and finally that bottom plate. If needed you can slightly sand the top 10mm of those plates to reduce the material so it slips under the plate above slightly easier. It isn't something I have had to do yet but I am just looking at the thickness of your material and giving you the option.
