Even though I covered the genitals of the characters drawings in there - my account was deleted - again.
To the point - people started to gain interest - and to ask for commissions - and this reacted my secondary account to be deleted - again - without warning. Instagran does not offer contact e-mail with their support. They have FAQ center which includes all the known issues - and my case was included to the common ones. In short - no way to complain. I will start posting my W.I.P pictures in this forum instead.