WeakestResUser said:
A lot of these are not getting approved because they're duplicates. Other common issues are bad anatomy (post #7693319) and amateurish quality (post #7716946). These I hope are already apparent to you. Mixed in with that, there are posts that are decent quality, but have generic composition, like post #7728664.
This is the most frustrating type of deletion, because it's not that the post is poor quality, it's just uninteresting. A full-body render of a somewhat generic anime girl from a gacha game is just not that appealing to most approvers, because they've seen it a million times already. Consequentially this type of post has to meet a higher quality standard to get approved vs for example post #7256544 or post #7255139 which are relatively low quality. Hopefully this useful, or at least interesting to you.