Comment added on Monday, 11 October 2021
Thank you Margaret, this was the very first time I was using flash so I was worried about going too bright. The instruments are also very reflective, I needed to be careful with hotspots.
There was also a very strong bright light coming from the window behind the girls that I needed to control.
I tried to increase the exposure by a stop in post but I felt it lost the character of the venue a little bit....I will give it another go with more localised adjustments.
Comment added on Sunday, 10 October 2021
This is an engaging photo journalism style of shot and I think it is good that the three musicians are all looking in the same direction, at the musician far left. That gives it a sense of unity. Lovely happy expressions also add to the shot. Personally I feel it is a little under exposed.