They are looking very promising. 1mm is very thin for early practice, but it's great for finding the fine line between a nice weld pool and blowing through. Looks like you are about there, and the welder set up looks like it's about right too.
The butt weld looks a bit rushed which is understandable for the thickness. Just takes a bit of practice and good weld prep (well worth getting rid of those burrs with a hand file before welding - they'll cause confusion when welding).