You did all that grinding in one morning?! That's more than I do in three months.
First thing I looked for was how you mounted your vise and that looks just right. Because of the way my shop is laid out my small vise is mounted on the wrong corner of the bench and it required a little extra futzing around too often.
One thing I gotta mention is light. You have a pretty good base going but I think you'd really appreciate having task lights - that's plural - at each workstation. You just can't have too much light.
Finally, you really gotta do something about accumulating a bit more grime. I know it's new and all but with all the work you are able to accomplish I'd think you could get some steel dust drifts going pretty soon.
Nice place, thanks for sharing.