The mast, funnel, pilothouse and underwater hull seem a bit off too
but yeah, it is mostly the bow that needs any real modifications. Check the hull depth amidships though, it seems your drawing is a bit low over there.
The trick is often to get as close to the builders plans as possible with your source. an really nice vector art of a ship can be a great work of art, but nobody checks it for accuracy and nobody checks it's sources. model plans are sometimes created by the navy's from the builders plans, which is as close as we often can get to the real builders plans.
Gollevainen, I do not know where you found a gem like this, do you happen to have more?