Painting my board question

Hi everyone, been trying to find answers and as this sub has helped me before maybe I get lucky again.

So I painted my board with enamel bases acrylic paint on a bottom ding I repaired. I really worked and studied to make this repair perfect and it was.

It was really smooth and all, however now I painted it and it lost that smoothness, it seems even it will create attrition.

So I was wondering if this is normal when you spray paint. And if not what should I do to correct it? Should I wet sand it again? Should I try to remove everything? When I apply the spray seal coat will it get better?

Thank you a lot!