Do you think my poem's OK so far?!

Do you think my poem's OK so far?

I know this is not jokes or riddles by just asking...

Do you think my poem is good?

Up above in the light blue sky,
A spaceship was flying, way up high.
It looked like a red disc, hovering around,
And suddenly it went all the way down.

It was going too quick, heading for Earth,
Every single Earthling, hoped it would curve.
Not one of their wishes ever came true,
But they were lucky as it landed on a bull.

Blood was splattered all around,
Blood was on everything that was found.
But although the farmer had lost a cow,
He didn't care as he was safe now.

Little did he know the unexpected truth,
A truth that will have effects not the size of a tooth.
A truth that may change the Earthling's sighs*,
Another spaceship was way up high.

(*the sighs are referring to sighs of relief)

no