Hey there Zolrok! Thanks for showing interest in our merry, little band of orcs! Like Trakmar said, your application is still quite short and lacking in depth. You did correct the point about the timeline, which is good progress, but we feel your background could still do with a bit of additional information.
You don't need to have your orc completely figured out from front to end of course, but questions like for example what he's been up to ever since the three great wars if he's such an elderly orc already, at which point in his life he became a shaman (since the orcs were cut off from shamanism during the first two wars), what his motivations are for the knowledge and revenge seeking that you mention in your background, that kind of stuff. I ought to warn you that roleplaying older orcs tends to be a bit of a bigger challenge than newly trained and young ones, but that choice is entirely up to you, of course.
I know that might seem a little daunting, but we'll gladly provide any assistance should you have questions or such! You're free to pose those here in this thread, or in a personal message to any of us here or in-game.
Good luck! Hope to hear back from you!