Have you done any research on Curaçao? It’s a somewhat dry, but tropical island off the coast of Venezuela that’s owned by the Netherlands. Consequently, it, along with its neighboring islands of Aruba and Bonaire, have an odd mixture of Dutch, Spanish and Creole influences that make these island unique and very interesting as tourist destinations.
Your logo captures none of this personality.
Your typography has a corporate look, but it needs to look laid back, easy-going, warm and inviting.
The mark itself looks a bit more like a diving accident than good diving technique. Your diver looks as though he might be at risk of drowning, sort of like he dived in head first, hit the muddy bottom and got stuck there. I doubt this is the message the company wants to convey.
In addition, the mark needs to look fun, easy, fluid, relaxing, and it should convey a sense of serenity that’s indicative of what tourists heading to Curaçao would want. You should try to imagine yourself in a tourist’s position — planning a vacation to a tropical island. This logo needs to appeal to them, the target audience of tourists. It also needs to make the company look reliable, professional, experienced and trustworthy.
The examples the owners like all have fun, exciting, tropical island colors, yet yours does not. You really need to convey the appropriate personality in this logo instead of it being just a literal depiction (which their brief indicates they do not want).
I don’t think you did your research and didn’t think deeply enough about this.