Better?
*shrugs* for the time being, yes. BTW, that raft is meant for special forces, it is NOT a lifeboat.
I wouldn't have it so close to the funnel though, especially since I was kinda seeing it as having two funnels on the ends of the beam (this ship would probably be powered by two smaller gas turbines, like Rolls Royce Adours, or two diesels of similar output). Typically you launch boats off the stern, but then we have to come to a decision - do we want the stern ramp or do we want a helicopter pad?
Also, if at this point you're satisfied with the superstructure and detail, now would be the earliest to start thinking about weapons fit. I'm thinking, probably the OTO 76mm, which is a good, rapid-fire gun, probably the smallest legitimate "ship-killing" gun out there but still appropriate for smaller vessels like the one its mounted on. Another good option is the Mk 110 57mm, which won't be punching through destroyer hulls but will tear up small craft, and most importantly, will scare the crap out of any drug smugglers or people otherwise wandering in where they shouldn't be.
You also have a lot of missile options. For anti-air work though, ESSM will be the biggest you can fit. It's actually a very good missile, but it's doubtful a ship like this will have the sensors and tracking capability to really use it to its fullest potential - but it is still a "self-defense" class missile. Alternatively you can use regular Sparrow but they're falling out of favor even for vessels like this. As for ASMs, you have a much wider range of options, and I think you're smart enough to not just plop Shipwrecks where ever you feel like.