daisy2944, the artwork has to be created by the player completely. In case if app offers a premade lineart and you're copying it with small alterations then we can't accept it, sorry.

Aera, sorry, it's not allowed. MLP characters are copyrighted including their colors and cutie marks. 

OK, I remember last time I uploaded a skin it took a while for it to be approved, and I was wondering, about how long does it currently take for a skin to be approved?

Thanks Angel for fast reply! No fandoms of any kind, only original work, got it! :)

So even if I am drawing it and have changed the head and streched, smushed, added claws, added more depth, lenghted, shortened the wings I still cant? Is it that I looked at how to draw for may basic idea and built on it.

If I changed it like completely, but looked at it for some shapes ideas is that still art theft too?

daisy2944, of course you can use the skills that you gained while studying from this app. But you can't modify their lineart and consider this to be an authentic artwork - this is still a derivative.  I can't tell if it is the first or the second as I didn't see the original artwork and the result. If you are just drawing your own artwork using the principles that you studied then this s totally fine.

Would it be allowed to use the old puma base for a skin, or do we need to use the new ones?

Kay, so I'm making a roc Bald Eagle skin. Someone else made one YEARS ago, can I still make my skin since it won't look exactly like the other skin or since someone made a Bald Eagle skin already, am I not allowed to make another since someone already had the idea before me? (Btw, first time making a skin! Completely forgot to look to see if my idea was already taken...)

Aera, you may use old base if you wish.

AneniRane, this highly depends on how different your skin will be. Though taking into account that it's bald eagle which has pretty simple coloration, I would suggest to try something else unless you're creating a version that will have undoubtfully better quality / closer to the real bird than existing one (for example with the help of detailed textures, reworked lighting, alternated base lines or any other art means that you find comfortable to work with to make the skin look more like a real bald eagle). 

Oh, okay! I'll try my Lovebird skin idea instead, since I don't think mine can be a better quality than the current one. Thank you for the help!

Would like to submit my first custom skin for approval please, thank you :-) The scales and hanging tendrils are completely my own design and yes I can post or send copies of my work in progress of both the scales, tendrils and the bases.  I used the .png base to begin. 
Kelpie Unicorn

Hi, just wondering why my skin wasn't approved, I think I might need to change the number of pixels but I am checking here just to be sure.

http://imageshack.com/i/f0V0pTF5p

LadyoftheForest, please check your skin on black backround. There are some issues with outline and a stray white brush stroke.

NyanGirl1313, sorry, the design quality doesn't look like expected. Strokes are pixelated and opaque, some of the details are lost and others look weird (not colored areas near the opaque color strokes). Please make sure that you don't use pixelated brushes and use layer blending modes in case if you're just painting with 100% opaque colors over PNG.

hmmm...that is odd, since I didn't use any white anywhere while painting it.  Will see what I can do, thanks

 Edit - okay hope this fixes it...as this is the best I can get it.  :-)

Is there any specific reason this skin got rejected, so I can fix it and re-sumbit.

I did a skin based on heartbroken Amor because I fell in love with the color scheme. I know there's a rule against existing skins, but does that go across pet species and can we make our pets look similar to kami?

Here's what i wanted to submit.

I also wanted to know if this is something we could do in the future, like a cat from saturn symurgh skin or a death kami cockatrice?