hmmmmm
well heres a tip add more to your authors notes about how this is not for beginners because most beginners dont even read the description....so maybe you could....
1.write "read this first"on the first line of authors notes(description)
2.make those words stand out from the rest you know instead of haveing the close together put "this is not a beginners tut" on the top or the bottom seperated from the others by like 2 lines atleast.
3.i dont think you have poor english,actually your pretty good at writing english....BTW just asking where are you from?
do that(lines 1 and 2(exclude line 3))and you should have better reveiws in no time! ok?