Handed off my code to Devs working on main products. Long presentation explaining everything.

Have discussion afterwards about what it does, but not how it looks.

They say thank you, I say you're welcome, and since this is my first bigger project, if they have some pointers or glaring defects in the code I'd welcome the feedback.

They all start laughing. I do too but in my head I'm like "wtf, I ask for feed back and you laugh? That's."

It's been bothering me.