Proposal Feedback

Your proposal quite clearly states what you would like to achieve with your magazine.
 I feel the genre classic rock/punk combines well and is a genre well known for having an interest in music magazines. I think this magazine would compete quite closely with Kerrang.
However, by adding the element of Steampunk, I feel that there are just too many genres. This may confuse your target audience.
This is further reflected in your colour scheme. I like the initial idea of black, grey and contrasting brighter colours. However, when you mention the additional colours red and golden bronzes, this sounds like a lot of colours. This may make your pages look very busy. I would recommend sticking to roughly three main colours.

I like your comment on article content. It seems that you know what content your target audience would want.
 I also like the idea of the border, I think that will capture the essence of the genre and attract your target audience.

You seem to have a good idea of your target audience, particularly your secondary target audience. However, your secondary target audience is more specific than your primary. Possibly select a gender to target primarily and target both as a secondary genre?

In terms of what your target audience will want and what would attract them, I think you have a strong idea of what you will include.