You have to remember this forum isn’t that active and the few members that post tend to be focused on learning about wordpress, making themes or building bootstrap blocks, so there may not be individuals that can offer you tips regarding the design process of taking a website from a graphical mock-up to a working website.
Here is an example of two mock-up blocks I built for a recruitment website I’m working on, a mock-up that some would have designed with paper or photoshop, but using Pinegrow I’ve saved myself time as the majority of work has been completed, and I can save these blocks as smart components for future projects.
and second block
Now, I understand that doesn’t offer you any tips for your design process, but maybe if you start using Pinegrow, you may discover a different way of designing mock-ups, IMO a smarter more productive way.