The sketches are correct, but I have two concerns,
both concerning tiny discrepancies in different profiles of the same piece:
1. The main artillery drawing (the isometric one) appears to have a slightly larger flare at the barrel end and slightly larger ring around the back of the barrel, as opposed to the artillery drawing at the top. I like the one at the top, with the smaller flared end and smaller ring.
2. The main frigate drawing (the isometric one) is perfect. The drawing which is a closeup of the bow looks slightly different than the bow in the main drawing. I like the main drawing better.
These are both points that I made in my first critique.
Hope this is clear and sorry if I've been a pain :)