I wrote two licenses under which I will place my software and art, and I want to make sure they're good enough for what they're intended to do. Is it OK to post them here for review?
Based on the guidelines in the Help Center, questions asking to review license text would be off-topic, as it's not code.
Note, however, that no Stack Exchange site will give you personalized legal advice. That means that if you're looking for someone to proofread or bulletproof license terms that you wrote, you should hire a lawyer.
Code Review is for the review of "code" in the sense of interpreted or compiled programming languages. Not for any other sort of "code" such as "legal code".