Advices on rejection of submitted art / photography portfolio

Hi,
I have been rejected and all I want is some feedback from experienced authors on what is wrong with my design. I have made a template for art / photo portfolio which is very minimalistic so that the photos can be the stars.

Everything is organized by a grid system, baseline grid etc. Defined paragraph and character styles, serif typografy with minimal or no captions included, varying layouts so customer can choose them and so and so.

So, what went wrong?
Thanks in advance.

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