Contest submission oc: Bat Night

not sure if thats good name...,as you can see she is a night creature(pony) she comes out at dark she have black lined,bat shaped wings,and body marks on legs what looks like blood,she have fanks as teeths and she use bat as bow who is also her pet,her hair looks grey but really is silver color,its shines in moonlight,her eyes arent like normal ponies,her eye black is red.and eyecolor is lighting green,her eyes glows in dark.Her cutiemark is bat and blood around it.Bat Night isnt evil pony she actully have nice heart but she can be acresive if you make her mad.

This her bio for for contest! I hope that tradinational art is ok,
also how many ocs can I submit?my friend nobrony wants to help me with this contest and she drawed me very awesome leaf pony,I hope its ok that I submit it too?