i've added a new picture!

How would the previous sentence be correctly capitalized?
Answer: I've added a new picture!
use brushes made of recycled rubber and packaging.

How would the previous sentence be correctly capitalized?
Answer: Use brushes made of recycled rubber and packaging.
i do not expect to write a lot of posts or receiveing a lot of comments.

How would the previous sentence be correctly capitalized?
Answer: I do not expect to write a lot of posts or receiveing a lot of comments.
this small difference adds up to thousands of tonnes less of paper waste per year.

How would the previous sentence be correctly capitalized?
Answer: This small difference adds up to thousands of tonnes less of paper waste per year.