I think Trinity is still expecting a candidate to have a balanced programme at LT level. I don't suggest OP to include more than 2 "French" composers in the programme, especially if they belonged to similar periods. You should be aware that you have Faure and Poulenc. Also, you have two "nocturnes".
In the rest of your programme, the examiners will more likely expect you to have pieces from baroque and classical periods, or otherwise, pieces by composers of different nationalities, e.g. American, Argentinian, Japanese, Russian, Germany, etc.
In my humble opinion, an all French music programme in FT may be more appropriate as specialisation is deemed acceptable at such level.
Remarks: Bach, Mozart, Brahms, Debussy, Szymanowski, & Rachmaninoff in my AT; Bach, Mozart, Ravel & Prokofiev in my LT; Bach & Beethoven in my FT