Congrats. The scope seems to focus quite well. I've gone thru 3 of these things & I found the generic Chinese one I bought on eBay wouldn't focus properly. My 2 Vehos focus well but the software is crucial too. I use a Mac & the best software I found was one called WebCam Monitor. Don't even know where I got that one but for razors it's even better than the OSX supplied Photo Booth. Also 200 x max is all you need . 400x is really hard to work with.
The shiny strip as on the right of 3rd pic can also be an incomplete bevel. At the lower grits you should see next to no shine at all apart from any burrs you might drag up. After finishing & stropping you will see the slightest hairline glint & even that should be hard to see.