Professional Thumbs VS Amateur Thumbs
 

I,m seeing those days that I,m getting more sales with amateur thumbs(I add more brightness) that with professional thumbs(less brightness and more contrast)...I know that thumb with more quality=more clicks ..but it is also =more sales ..Surfer see perfect thumbs and associate it with classic porn... what do you think?

the more natural the best. What do you define as perfect thumb? I have a feeling you are reffering to those "retouched" / blured.