My ideas for my private community's landing page

I'm down today so hopefully, that tone doesn't suppress my excitement about this project.

Here's its current landing page - join.coulf.com The idea was to keep it minimal, and as little wordy as possible.

My ideas for the landing page when I launch are:

• A PPT deck kinda thing embedded on the site body. And just basic header, footer and other pages like code of conduct for example
• Full-width slideshow with each slide being intro with a join form field, pain points, benefits, etc
• Retro feel website
• Continuing the minimal design it has now and build a beautiful website

In the first three, I'm trying to do something different — which I decided personally because almost every site I visit looks just the same — that's about it. The last one is a fallback.

Which one do you guys think will be nice?