Hello again!
The only British Battleship class that I can think of that does not have an entry yet is the Neptune-Colossus (Hercules) classes.
The other line of ships I can not remember seeing is the Gem to Bellona class Scout cruisers 1904-1910. I have looked at doing both, but I do not have the resources to do them justice.
No worries there, Krakatoa. I think I have.
No promises though as to how quickly they will appear. And the K.G.V.s, and the Weymouth-class light cruisers, for that matter, which I have not found in the Archive or the Forum, either. I have collected some sources about them too, although the Bellonas are extremely poorly documented in the WWW and the drawing in Conway's lacks a lower hull.
There's a lot more stuff yet undone, AFAIK. Someone seems to have drawn the Iron Dukes (the class ship anyway), but the Forum page does not show images, at least on my computer, and they apparently were not uploaded - neither were the Bellerophons, St.Vincents and some of the Invincibles, which have been drawn to an extremely good standard. Besides, there are a lot of subclasses of light cruisers which have not been drawn yet, not to talk of a zillion variants of British destroyer designs and - as far as I can tell - the Indefatigable-class battlecruisers.
I've been working on various composites and posting them to Reddit for a couple months and just began a series on Jutland (latest
http://i.imgur.com/8MyOd1B.png). All German ships have been drawn in detail (thanks Garlicdesign-your name is on almost every ship on my WIP composite). These are the British ship classes in the battle and the status of the drawing.
Battleships
Bellerophon-similar drawing (Dreadnought) available
St. Vincent-similar drawing (Dreadnought) available
Neptune-No suitable drawing
Colossus-No suitable drawing
Orion-drawn 1910
King George V-similar drawings (Erin and Iron Duke) available
Iron Duke-drawn, needs updating
Agincourt-drawn 1914 and 1918
Erin-drawn 1915
Canada-drawn 1916
Queen Elizabeth-drawn 1913
Revenge-drawn 1916
Battlecruisers
Invincible-drawn 1914
Indefatiguable-HMAS Australia drawn, needs updating (Indefatiguable misspelled)
Lion-Lion and Princess Royal drawn in 1916
Queen Mary-similar drawing (a Lion) exists
Tiger-drawn 1913
Armored Cruisers
Devonshire-No suitable drawing
Duke of Edinburgh-HMS Duke of Edinburgh drawn 1906 and 1917, HMS Black Prince drawn 1916
Warrior-No suitable drawing
Minotaur-No suitable drawing
Light Cruisers
Town: Bristol-drawn 1911
Town: Weymouth-similar drawing exists
Town: Chatham-drawn 1912
Town: Birmingham-similar drawings exist, HMAS Adelaide in 1939 unsuitable
Town: Birkenhead-drawn 1916
Arethusa-drawn 1914 and 1919
C: Caroline-drawn 1914 (and 2000)
C: Calliope-similar drawing (Caroline) exists
C: Cambrian-similar drawing (Caroline) exists
Boadicea-No suitable drawing
Blonde-No suitable drawing
Active-No suitable drawing
Destroyers
Acheron (I)-similar drawing (Acorn) exists
Acasta (K)-HMS Achates, HMS Shark, and HMS Spitfire drawn in Jutland configuration
Laforey (L)-similar drawing (Admiralty M) exists
Admiralty M-drawing exists
Yarrow M-similar drawing (Admiralty M) exists
Talisman-No suitable drawing
Faulknor-No suitable drawing
Marksman-No suitable drawing
Personally, I am fine putting in similar ships for the current composites and updating them later, but long term this is the list. There may be other drawings that were never posted here (which is how I found Iron Duke), but I have not found them.