Vector Avatar Pack - Hard Rejected. Need feedback how to improve it?

Hello,
I uploaded Vector Avatar Pack and it’s been hard rejected. If anybody would be so kind to review it and give a feedback. In a first place I would like to know, do you think it could be improved enough to be uploaded again or should I just drop it.
Thanks for your feedback in advance.

hi , for me this is good, however maybe they did not identify there was potential enough for them to sell … maybe they were expecting to have full faces? maybe they were expecting to have all items separately so that people can make their own mixture? hard to tell … as for me i am sure that one of the problems that u faced is that they will probably identify your work as it at this time as being containing too thin lines, which will according to their usual point of view be a problem … maybe u can work around these issues to improve this item … not sure , for me this is nice and it could have made it …

Thank you n2n44 so much for your reply. This is vector file that is why I haven’t created separated files, because it is fully editable …
But since it was hard rejected there must be some “BIG” reason they did not accept it. Just the question is
how to figure out what is that “BIG” reason …

Hope some other members here could have some ideas about it …