It's looking good. Like me, you tend to tackle big projects. Taking the time and energy to do it right, you'll have far less trouble after your plants are growing, (and hopefully the weeds and unwanteds are not)! Maintenance will be easier with the straight border. I think the inset would have been something you would want to change after mowing a few times. I've got some odd little corners that are a pain, and have been threatening to change one of them for several years. I just never seem to get around to it, but am frustrated every time I mow between a big tree and the flower bed. So many projects, so little time!