OK, again, the only thing I will advise is that you slow down, take your time, and clearly research and document everything you can about the ship before you just hurriedly trace it... I compiled (and am still compiling) pages of notes on the refits and equipment on the Alaskas and North Carolinas...
I will try to address each point individually.
The color is taken from Wikipedia, it`s the same as yours.
If you're referring the Navy Blue (5-N), then I agree and that looks fine. I was wondering about the anti-fouling red used on the drawing as it's darker than the rather arbitrary color I invented last fall for some AU drawings. If you have the official color (taken from Wikipedia or Snyder & Short) then I would love to use it myself.
I dont know what the small items on the bow and the stern is, but they are there. They appear to have been removed by 1943-44 to make space for AA guns.
OK, well that's a problem as you should know what every single thing is that you're drawing. Creating details and inventing small items for the sake of filling space is the cardinal sin of this website in my book.
From first glance at the large lineart Colombamike linked, looks to me like the large thing directly ahead of the main battery is a mushroom vent. The two smaller things are probably vents too but I can't be sure. This is where you need to find the Booklet of General Plans and reference that. Check here:
http://www.hnsa.org/doc/plans/index.htm
HNSA has the faired lines for the Colorado (not particularly useful for elevation views), and the Booklet of General Plans for the West Virginia (a sister ship). Page 6 of the West Virginia PDF will show a plan view of the bow. Go read through it and figure out what those things are.
The platform amidships is indeed not a boat boom, but a small platform sticking out. It seems to stick between 50-70cm out of the deck.
I don't agree with you as the West Virginia's plans specifically label it as a boat boom, and I've never seen any such platform on any of the USN ships.
I have no idea about the mod and mark of the firecontrol directors, I know that it`s the same as all the other standard battleships.
And I suppose it's completely beyond the pale for you to consider doing some actual research and figuring out what it is, so you can then draw a very accurate version of it that the rest of us can use and refer to when we draw other USN ships?
The large radar is the CXAM-1, and I have no idea what the smaller one is, it is there, proven by pictures.
It's not a question of whether or not I believe that radar is there. It's a question of whether or not you did enough research to actually learn what that radar is, why it's there, when it was added, and what function it performs. That's a Mark 3 Mod 2 fire control radar, added to the roof of the spotting top to provide radar direction capabilities for the main battery. Refer to the HNSA Catalog of Electronic Equipment here:
http://www.hnsa.org/doc/ecat/index.htm and here:
http://www.hnsa.org/doc/ecat/cat-0719.htm for more information.
The bow jackstaff and the aft one should probably be two pixels thick, but we usually dont do that. The reason for the aft one being only one pixels is because the ref image shows it to be like that.
This is where you get to make a decision. Since we can't have things that are two pixels thick, you have to decide what will best portray it... it's a compromise. I choose one pixel because using three just looks too thick. But the most important lesson for you to learn here is to be consistent.
As for the Mk.51, it would seem to be used in conjunction with the 3"/50.
Proof and evidence of this would be great as I have only heard of the Mk.51 system being used with the 40mm Bofors and 5"/38 guns. I'm sure it was possible but would like confirmation.
As for the lines around the turrets, again I have no idea, but all of the WWI and post-WWI designs had them.
I'm fairly sure they are pipe rails that allow the crew to access the front of the barbette and turret without using a ladder.
The reason for me not having the Kingfishers on the platforms is because you have not shown them like that on other drawings, I could move them on to the platforms if you think it should be so.
Ah so this is my fault. Excellent. I'd recommend that you study some photos of the catapult arrangements and fix the setup yourself.
Again, hate to tear you down, but come on. You're tracing some of the most complex ships in the US Navy and calling it good. Personally I wouldn't approve these for upload until the issues are fixed...