Those British design really comes around... someone is good at building/designing frigates
good drawing as usually. I find the shading of the overhang interesting, I have to try that one day.
But I feel that using shading color on that wave piercer aft of the gun is not ....perfect choice. since you have painted it as light comes from the front, with a lighter color than the standard superstructure color, I would use here superstructure color as shading.
Oh I would use dark grey-ish color instead of black, where surfaces is braking of at an angle... except for extreme angle where I would use either black or shadow grey to indicate so. on pictures those areas on this frigate is around 45 not at 75+ degree angle
something like this: