I joined a writing group, they looked pretty fun and I need people around that wont just rubber stamp all my writing as "fun" or "good."

I want to know which part made it fun and why it was good; but mostly I want to know where can I improve? Where am I just awful? Constructive criticism on a ruthless level that just tears into every mistake I make...

My objective in the end is to get better.

Current writing is with Clarent's Blood; an exchange of Mordred vs Mordred; called Ironclad Heart.