Nice shots. Some things I noticed:
#1 looks kinda washed out because of the harsh sunlight. Needs something to contrast it and give it some atmosphere. Maybe shoot there at a different time of day.
#2 is beautiful. Nice perspective with the rocks in the foreground.
#3 is interesting. Colors are good, but the sky and building in the background are blown out.
As for the rest, the B&W's are good. I like them. But there is a definite halo around the men in #5. Not sure what that is from, maybe the shadow/highlight filter?
I envy you because you live in this wonderful tropical setting. I will make it there for a vacation some day, but not sure when that will be.
Thanks for sharing the pics!
NJ