This looks great @sparky I will recommend that you set your home page hero image background to "Cover" instead of contain and remove a max width from it if you can as it cuts off after about 1859px width.
I would also maybe place a form in the site so that people can contact you easily, and remove your email address and maybe replace it with a text or graphic styled link mailto: link (otherwise you're going to get a lot of spam email). I have an example of this on my site at the bottom: www.youfoundwaldo.com
Also consider adding some kind of fixed button on the page for folks to contact you
And on mobile, there isn't really a hover state (there is when people touch an item, but should be treated as though there isn't one). So on your work sections, I would set your hover over pseud-divs on images to be showing on mobile or have them display underneath the images so they aren't overlapped