First off, this isn't really a yes or no question, this is an opinion.
My opinion is that photos that have been altered in any way should be marked. These days you never know what a person will do to say, get a job, advance a political agenda, or ruin the reputation of another person. The public has the right to the truth. Therefore, altered pictures should be marked or labeled in a way that differentiates them from others.
How many pets does each of my friends have?
Explanation:
you're comparing multiple different people's pets
Answer:
roses are red, please do not laugh, my grandpa's feet smells like trash
Explanation:
The eye is texture
Waves is the dj
Red suit is fire
Brief case is light