My leader model is usually the model that I convert the most in miniature battle games (though it may be debatable this time with some of the conversion work I have planned, and the ship I plan to build for LotHS). I haven't changed much from the standard I have set for myself, when it came to my captain model.
Taken shortly after most of the actual conversion work was finished, my captain model is based on the Epic Skarre model from Privateer press.
After basing the model with thin ash plywood planking.