We have the next suggestions:

• I think it could be better if you center the button of the contact form, you can use justify-content and/or align-self.
• I think your design is good, but it could be more like the template if the "Portfolio About and Contact " goes to the right in the navbar.
• You can modify the "hx" tags to be more accessible for people with disabilities.

We also notice the next missing parts:

• the LET'S CONNECT subtitle.
• The button on each project card.

I think if you complete these parts, your project looks more professional.