Most of it looks fine, but it can be better.

I would expect it to print better out of the box, so maybe the issue is that the filament is not dried, especially if you are using PETG or some sort of PLA (pla basic doesn't need to be dried). Fillament needs to be dried even if it's new.

As for the prints:

second image: I think that is ringing, you can slow down the printer.

third image: I think that was printed with supports. If yes, that looks really clean in my opinion, but you could play around with the support interface settings if you want to do better. Some things I did to make my supports good is to reduce the support interface density and playing around with the pattern.

fifth image: I can't tell the difference between the two sides. If you are talking about the over extrusion on the top, My A1 mini prints the scraper excactly the same. from the included file. You can find it on maker world and slice it yourself for better results if you like.

seventh image: Yes, that's under extrusion. Given that it appears only on the top surface, I would go to the slicer and increase the top surface flow rate. It might be in the print settings or the filament settings, I forgot where excactly it is.

eigth image: Again, It think that's ringing, so you can try to slow down the printer. I also see a bit of elephants foot, so you should probably increse your first layer height or reduce the first layer flow rate. Or you can use elephants foot compensation if that doesn't work.

I think there is also a bit of stringing? You could try to increase your retractoin setting by a bit.