Cool! Let's try this.
What is this category for? Why should people select this category for their topic?
People could use this category to write reviews of other comics and to ask for reviews about their own comic.
How is this different than the other categories we already have?
A review is some kind of feedback, but having topics like this into the Intro | Feedback | Shoutout cagetory would be a bit messy (as that category has 3 different purposes) and not evey feedback is necessarily a review about a comic itself. It could be about other specific things (like only art), for example.
Do we need this category?
Yes, it's good to have a specific place to ask for, look for and present reviews. It's more organized.
Should we merge this with another category, or split it into more categories?
I don't think it's necessary.