You did a good job with the picture selection and ordering imo. Here are the grammatical things I noticed.
"They are self-couscious", I think you meant "self-conscious"
"We don't need meat and vegan diet is healthier meat-based one", this is missing a couple connector words. New stuff in bold. "We don't need meat and a vegan diet is healthier than a meat-based one"
This is fine but I would've said it differently: "Veganism is better for our environment"
I've always seen words quoted like "no" rather than having the first quote being low on the line.
The word becasue should be spelled because. Also the quoting thing again with "yes".