It is probably a mistake to actually ask for substantial critiques as even with me knowing that my own art needs work,they don't really give critiques in the same way you would expect from an actual critique.
They usually send you off to another part of the site and just only tell you to work on fundamentals without directly addressing any issues.
It is a miracle if anyone actually improves their work on there.
Hell,maybe it is me being too soft but I almost thought of quitting art mainly due to how hard it is to meet up to their high standards as well as most of these guys don't actually critique you in any direct or helpful manner.
I don't know.
Maybe I do need to work on my basics but it is really messing with me as I recently gotten back to drawing and have hit the 28 age bracket.
I don't know if I can improve that much in my older age.