I cut these "borders" with a 105. Needed the practice. I'm still learning stuff every day I cut. I'm up for some criticism.
So don't be shy. Are there things I may want to focus on more?
Geometric shapes leave one particularly exposed for every minor wobble or inconsistency.
Something I pay attention to when engraving these types of designs is to scrupulously back-cut the beginning of the cuts so that when they intersect other cuts, everyone has a uniform line width. Without back-cutting, the beginning of the cut, even if you start "inside" an existing cut, is inevitably narrower until the graver gets to the correct depth. With uniform-width cuts, you must back cut and match the width on all line work.