Great work. You taught the Germans a fine lesson in the art of naval warfare.
Do submarines play much of a role in full naval engagements or are they mostly only convoy raiders?
My natural thought is that if you’re going to be fighting Italy next (hopefully) you’re going to want something to counter their submarines so screen ships make a lot of sense.
I’d drop the battlecruiser line for a while and keep the battleships rolling off the line.
Invest heavily in research but not much in actual production. Dreadnoughts will rule the waves for now but aircraft will be necessary down the line. Also get some AA guns on the new screen ships.