Sorry I can't help you on this one but if you post your question over on the GW Name That Plant Forumyou are more likely to get some responses. This Forum is more for the science of botany than plant id and is not much visited. If you have any other pictures of the tree including the whole tree and the fruit plus an idea of the scale it would also help.

That's it! Thank you so much :)

Just a lucky coincidence. If you need any more ids it really would be better to use the Name that Plant forum. You would have got a name name for your tree much faster.

I think this is a Persian silk tree a.k.a. Albizia julibrissin.

AJ Alonzo, very interesting similarities in the flowers but looking at the images on Google it appears the leaves are quit different. This looks like a Barringtonia to me.

Definitely not Albizia the leaves are entirely wrong and the flowers are also very different. No visible calyx for a start.