Is there a way to create a particle based skybox that blends with a website?

I Have this moon project that is some sort of a blend of playcanvas and a website page.

Right now it looks too flat, I was using a skybox before but it didn’t blend well with the page.

I’m thinking if there is an easy way to create a particle skybox that is transparent at the same time, so it blends with the page, instead of using the actual 6 faces cube

This is my page: http://academic.cast-soft.com/3dlandingpage99/index.html

This is my photoshop reference: http://i.imgur.com/iWZgtAd.jpg

This is my project: https://playcanvas.com/project/484436/overview/moon-experiment-vs-2

Any ideas?

Thanks!

Do you want it to be animating? If not, could you not just have a background image that is slightly alpha’ed or just have it as the background image on the site?