The mod im making isn't finished yet it still has alot of work to be done.

I wont to start showing some screenshots of my mod but making it so
the public cant download the mod it self. i wont them to be able to read the description
and see screenshots.

is this possible if so can you explain how?

thanks.

I don't think it is. If you want to get it out there without releasing it, make a WIP thread in the Mod section of the forums.