Firstly, when I watched at Carrington in the 2019/20 season, the U/16's were players who are now in the U/18's and even U/23's. So, two seasons later I have never seen the current U/15's or U16's live. In fact I have only seen the U/18's live in a handful of FA Youth matches...so anything I say is based on clips from social media and the odd streamed game like the Northern Ireland Milk Cup.
Apart from parents and coaches, no fans have been allowed back into Academies to watch any games at all.
Musa is a tall striker who can also play out wide. He looks technically quite good and is quick but I wouldn't say he is particularly prolific in terms of goalscoring. My records show he hasn't scored that many at all for the 16's when he has played.
In terms of Curley, he has been out injured for quite a while and only returned to action in December. He has played in most games for the U/16's since in the #8 role. Again it's hard to tell without watching players live but I know he is rated. Finley McAllister, James Nolan and Louis Jackson seem to be the standouts in that group but Curley seems to be pushing into that group.