It was pretty good good but there was quite a lot that I figure was probably from lack of experience.
Setting up the blueprints was a little drawn out. It's easier to open the images in something like Photoshop/Paintshop/GIMP (?) and use the dimensions of the image as a template for the sizes of the appropiate planes. Much easier and more accurate. I noticed you didn't "freeze" the blueprinys either (select objects, right click. properties - untick show frozen in grey and tick the freeze box). This means you won't be able to select the blueprints by mistake.
It's hard to see what you're doing when editing vertices & edges when the image shows selected face(s). Did you use the GIZMO too by the way ? Couldn't see it in any of your pictures. Nowt wrong with editing in perspective so long as you do it one axis at a time.
Not sure about rotating viewpoints. Easier to use keyboard short cuts to jump to different view points. Other than perspective I've never rotated a viewpoint. On that note however, press G to remove the grid.
Rathing then getting vertices "near enough" to each other use the snap tools ("snaps"). I was shown this on a course and use it all the time now. You could also use view align. My favourite tool when doing uniform shapes (ie non-organic stuff). Or target weld, another favourite.
Not a bad effort though.
