Thank you for your continued support and feedback, I can see and feel the improvements! Here is the link to my final project Responsive Web Design Certification Series: https://codepen.io/joesh/full/JjYdojE please go through it and give your feedback.
Overall, I think your portfolio’s design is professional and accomplishes what it should. The mobile scaling appears to work well too. My suggestion would be to experiment a little bit more with color combinations and element shadows. Currently, I wouldn’t say I see a definite color scheme or relationship. I would recommend going to https://colorhunt.co/ to find some color palettes.