Hi Nighthowler, thank you for your message and welcome to the community!  Happy to hear you found an Ultimaker.    The top minical test doesn't look too bad. You can see some stringing in between the pillars which could be something for you to look into to improve. This minical gives you an opportunity to see if your belts are tight enough (sharp corners), if your cooling is working (stringing, molten layers), and if your extrusion is on par. And it could show some other artefacts