@thedan84 The design is clean and the text approachable and readable. I'd consider a phone with one of your apps on it for the second illustration, but that is pretty minor.
I personally wouldn't have three testimonials from a single client, even if they are for different jobs.
The text in Coding as a craft doesn't work for me. There's no verb in the first sentence, and in my opinion it needs one.
Could you not make "my Portfolio page" the link, instead of having a button? Or in addition to the button.