Looks good, and very nice for a first effort. I do agree with the others about the white lifeboats. I know the Tamiya directions call for that, but as it ruins the camouflage scheme from the air, the boat covers or the uncoverd interior would usually be covered over with one of the camo colors.
Don't be in a hurry to add to many photoetch bits and railings and such. Work up to it. The Dragon destroyers are a good choice for that, as while they include etch, they usually omit some or all of what many consider the toughest part, the railings. So you could have a more detailed radar or depth charge racks, say.
A couple of websites I can recommend if you are not familiar with theme already -
www.navsource.org has a database of basically every US Navy ship since the American Civil War, organized by type and hull number. Most entries have at least a few photos, some a lot more.
www.shipcamouflage.com Hosted by Snyder & Short retailers, has info and databases on USN camouflage measures and info on individual ships. It shows the Fletcher did wear measure 22 camo in 1945, but a lot of the smaller equipment would have changed by then as opposed to what is given in the kit, which depicts the ship as commisioned in 1942.
Anyway, hope it helps some. Good luck, and I hope you keep building...