Create Web design in HTML -- 2

I want to create a design for my site. Site content will be like Pinterest, mostly pictures.

Specification:
- Responsive
- Fast Load
- SEO Friendly
- Pagespeed above 90
- Well structured heading
- HTML5
- Lazy load

All page
1. Header/Web Title
2. Menu
3. Search Form
4. Sidebar => list of category and recent posts (thumbnail and post title)
5. Footer => Website name and some link

4 Pages Design

Home
- Paragraph at top and bottom
- Content in the middle: list of images and post title in grid style like on Pinterest
- Pagination

Category
- category title
- paragraph at the top and bottom
- Content in the middle: list of images and post title in grid style like on Pinterest
- Pagination

Detail Page
- Content: title, 1 big image, description, tag
- Below is a list of images and titles in grid style like on Pinterest

Page
- Content: page title, paragraph