Help with vfx to an indie movie

Hello Blender fans

I have made a short film(1920x1080) and it’s about 2 scientist, that is send back in time, to investigate an incident, that took place in Russia in 1956. They find an abandon base and a glowing sphere of alien origin.

I need your help with some vfx and you have to do it for free, i have no budget, and can only give you the challenge and your name on the credits.

At some point, in the film, the Russian base, is being eating by a black hole, and I need you to make the vfx for that. I have made an attempt in Blender, to show what i mean.

I also need some vfx shots of the ground, breaking up and a forcefield coming through the crack.
But lets talk about that later.