Please capitalize where necessary: the picture is from 1985.
A: The picture is from 1985.

Q: you can get paid this lump sum once or get paid in instalments over many years to come.

A: You can get paid this lump sum once or get paid in instalments over many years to come.

Q: read about sunset hotel in your own language
A: Read about Sunset Hotel in your own language

Problem: during this period grothendieck's work provided unifying themes in geometry, number theory , topology and complex analysis.
Can you repeat this sentence, but capitalize it?
Answer: During this period Grothendieck's work provided unifying themes in geometry, number theory , topology and complex analysis.

Text: you will then be able to download your favourite games.

Correct capitalization: You will then be able to download your favourite games.

Text: the most highly evolved members are beautiful light beings who voice the will of god. at this moment a considerable part of the galactic federation is present around the earth to bring the tumultuous end of our cycle of duality to a happy conclusion.

Correct capitalization:
The most highly evolved members are beautiful light beings who voice the Will of God. At this moment a considerable part of the Galactic Federation is present around the Earth to bring the tumultuous end of our cycle of duality to a happy conclusion.