I mocked-up my Sailor V shirt today! Over all it turned out pretty good. I will be taking the collar in 1-2 cm along the back, I find it too big. And I think i will be shifting the sleeve (not pictured) so the split between the red and white will be more even.
The front looks good. I *may* widen the collar opening (not 100% sure yet) and I think I may need to take it in a bit.