Yeah, you're not wrong - there are a couple of things I'm planning to improve on this machine. All fixed this week, and none affect the function of this part.

Backlash in X (causes poor text resolution)
Gantry flexibility parallel to Y (causes the wavy edge on X direction cuts)
Z not quite normal to the table (causes the "stepped" appearance to the cuts, where each pass is visible separately)

Cheers for the feedback! :)