anybody willing to read my fanfics and leave constructive criticism?

i'm aspiring to be an Autor someday so i start with Schreiben fanfiction. i do write my own original stories, but i don't feel comfortable posting them on the internet just yet. but it'd be much appreciated if any of Du Supernatural tv Zeigen Fans would read my fanfics & leave your reviews and Kommentare about it!

links-

story 1:
Schizophrenia - "dean Du really are here, right?" "of course I am, why wouldn't I be?"
link: link

story 2:
Destination Unknown - Kaz and Eva Liebe the tv Zeigen Supernatural. And Von love, they mean mildly obsessed. What happens when these two fangirls are somehow transported into the tv show? At least this universe is made up of hot boys - can't say so about their college, though.
link: link

story 3:
Dear Dean - in which she writes him letters in hopes that he's still there. [ season 10 (may become slightly au since only a few episodes are out ] [ demon!dean ]
link: link

story 4:
Calamitous - "what is depression like?" he asked, frowning. she sighed, "it's-it's like drowning. but Du can see everyone else around Du breathing." [castiel/oc]
link: link

thanks again in advance! :-) i'd really appreciate feedback since i want to improve my Schreiben skills