Club Rules to get a 5 rating
Send 100 used stamps.
Unique stamps, no doubles.
Stamps in good condition.
Your Profile calls for all European stamps, I myself just started to collect World, have 1000's of United States Stamps so if I got you are a exchange you would get United States, most of my exchanges range from 4 to 5 stars would expect same. Yes I have some European stamps when I was 10, Those stamps should be in the trash, mostly definitive.
Also take a look at the person rating that sent you those stamps, you rating should be in line to what that person been getting. Also never rate a 2 unless there are more then 10% damage stamps. I myself consider a missing single perf on a stamp or two as not damage, but if there are many that's a different story.
You say ""they are not bad stamps"" that's a 4 star in my opinion,