First dualogue performance

I have a mixed opinion of my first duologue performance. Firstly, I found I did quite well remembering my lines. Although I may have missed a couple of little line out, I remembered all of the important ones and felt I did not show I'd forgotten a few. I also felt I remained in character and did not really laugh which I felt was an achievement!
I also felt my accent was not too bad but I did not feel I was loud or overpowering enough. This is something I definitely need to work on as I don't normally play those kind of characters. I also felt that I maybe didn't make my character so believable as I played the character very differently to other people. This is because I focused more on being angry rather than fantasising over 'big men' which I think I should have focused on more as I think this would have made it a more effective and believable piece. I also think I needed to attack, emphasise and slow down the words a little more.
Finally, I feel that although I was not too nervous when performing the duologue, I still need to improve my confidence and audience and awareness when acting. Overall, I believe my first duologue performance was a good start but now I know what I have to improve on.