I like your clean look. It is very attractive.

That said, bullet journalling is not about fancy layouts, artistic spreads, multiple pens, stamps, stickers, cover pages, etc. It is about quick bullet lists in a notebook.

It has become the next iteration of scrapbooking. But it is a productivity practice, not an art project. You can keep a bullet journal with one pen and a notebook. It can be messy. Your handwriting can be chicken scratch. It can be a graphic designer's nightmare. As long as you're working it.