Front Cover: Research Conventions of Magazine Cover

I started comparing my magazine to the conventions, to see what else I was missing. Obviously, I'm going in an slightly different direction because of my target group. 

However, some conventions still must be kept. 

Such as: 

Masthead

Barcode

Left Third

Selling line

Dateline

Main Image

Model Credit

Cover line

Still left:

Barcode     X      

Dateline      X

Model Credit       X

My Left third, if it is not obvious, is the letter 'T'. I think the 'T' is very distinct enough to represent my Masthead, Timbre.