I've created a modern, responsive design with several enhancements:

1. Added a subtle glassmorphism effect to the container and buttons
2. Included smooth hover animations on buttons and profile image
3. Used gradient backgrounds for the buttons to make them more visually appealing
4. Added a custom font for the signature
5. Improved the spacing and typography
6. Made sure all interactive elements have proper hover states
7. Added proper meta tags and responsive design
8. Included subtle shadows and text shadows for depth
9. Used modern CSS features like backdrop-filter for a premium look

The design maintains the mobile-first approach while adding visual polish and interactivity. You can simply save this as an HTML file and it will work immediately.

I've made several enhancements:

1. Updated the color scheme to use the specified green (#10b981) and blue (#3b82f6)
2. Added animated floating background elements with blur effects
3. Implemented the new profile photo
4. Added a sophisticated glass-morphism effect to the container
5. Created smooth animations for all interactive elements
6. Added a shimmer effect on button hover
7. Improved the signature with an animated underline effect
8. Enhanced the overall spacing and typography
9. Added subtle gradients and transitions
10. Included floating animated background elements that create an engaging, dynamic background

The design now has a more premium, professional feel that matches the tone of the profile photo while maintaining full responsiveness and smooth animations.