Unfortunately, your application to Lord of the Craft has been denied, but fear not! You are encouraged to apply again, and I think that with the following modifications, your application could easily be accepted:
Your roleplay story was very original, but it seemed a little bit improbable. You should be aware that stories of orphans "raised by wolves" are extremely common, and if you want to make your application stand out further, you may want to remove or shrink that portion of the story.
Your definition of powergaming was partially correct, but you should be aware that there are multiple, varied definitions of powergaming. I suggest you Google the terms godmoding, twinking, cheesing, powerleveling, and munchkin. You may already know what these words mean, but I encourage you to take a second look, and revise your definition of powergaming to at least partially cover all these instances.
You didn't, at any point, describe what your character looks like in words, and I do not think the skin you linked to is acceptable for use on this server.
If you want to discuss your application's denial or ask me further questions/to elaborate on reasons for your denial, you may contact me under the name UltraRed on the server's TeamSpeak (ts dot lordofthecraft dot net).