Top player artefact

Hi, I’d like to ask for some advice on what I might have set up incorrectly or where the problem could be.**
The top layers don’t look very good — not nice at all — and I don’t know what’s causing it.
I’m using Bambu H2D material, 6 mm nozzle, 0.3 mm layer height, and the printing temperature was 255 °C.
Calibration was done before printing — everything from the bed to the flow, etc.
Does anyone know what could be causing this?
https://drive.google.com/file/d/1-8RDUb8avgu_HZp9zrbh-XBa03t7QAxA/view?usp=sharing, https://drive.google.com/file/d/1RiYFFpgYJ7rG1YLpgGI43mu9v9O_X3Az/view?usp=sharing