[bthallplz]

Just focus this on your personal brand.

You can still relate it to concerns/business requirements or processes that agencies might have, which you considered and factored in when you made design decisions about the code, architecture, or processes. But since this is more of a project that you built on your own and one that you own, it makes more sense to me that you'd present this as "I changed X on Y because 123" and so on.

[mohammede]

I meant trying to use it to produce content to kick start my own agency, even if it's just me in the beginning, to try and get some reputation or credibility.

[bthallplz]

Oh, sure. You might be getting ahead of yourself with worrying about that at this stage, but maybe eventually.