It's good art and hot smut, like hot damn.
B U T. The childlike Uke isn't necessary. Like why. I'm not shaming anyone who reads this, I'm picturing him different in my head too. But it's suspicious to draw him conciously, specially like this.
On another note: I know there are people who are adults but look like minors, but want to be seen as adults and have problems being seen as an adult and their lover not being accused as an pdfile. It's okay to write something about that. But this is different. Way too young looking, no excuse, because there is no actual story to tackle any personal problems.
*sigh*