[Ju]

1) Shall I say:

I would like to take this opportunity to express my heartfelt gratitude to you and all creative minds who have contributed tremendously in this project, namely, Jess, Peter, Esmy to name but a few.

2) I am always hesitant to use namely for oral and written English. Am I right this time? How could I make it better?

3) Can I use the above sentence for both oral and written English?

4) Shall I put comma behind creative minds? Is the sentence too long?

Thanks.