TCSpot Mockup - Need Opinions!

I mentioned the site/business plan that I'm creating before when I uploaded the logo for it. Well, I came up with a front page mockup, but I don't know if this would be good for what I'm doing.

Basically, I'm creating a small business directory for businesses around my area, each one will be reviewed and categorized. I choose different colors for each category, each category page will have a slightly different highlight color, to separate it out from the rest.

What's your opinion on this? Does it work well together?

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