poor plastering

I recently had plastering work done in my hallway, landing, and staircase. Additionally, some new boards were required for a stud wall in the hallway. While the finish looked largely acceptable, there are specific areas that are unsatisfactory to me. The images don't capture everything, but for...

My husband and I are currently going through our project and have come to the stage for the plastering. However we have ended up with a bumpy and strange finish. The builders tell us that they are going to fill it but to us it seems a lot of work? Both of us are not plasterers or builders so...

We have recently had some work done and I am not happy with the finish. What do you guys think, am I too fussy? Pic 1 - Beading is showing. I am told that it is standard practice to leave showing and that paint will cover it? Pic 2 - This has already been painted but there are bubbles all over...