Hello there Grekkor, and apologies for the delay in answering your application!
Your application is a little on the short and basic side, but there's a decent framework there already. When starting with a new character, you don't necessarily have to have every 'i' dotted and every 't' crossed, but I would like you to further consider some details surrounding your character's backstory.
For example, his younger years and upbringing -- as an older orc, it may well be he has first-hand experience of the orcs' demonic corruption on Draenor, the formation of the Horde, the First and Second Wars upon Azeroth, etc. This may be particularly interesting for a shaman, as the spirits deserted the orcs for a period of time after they took up fel magicks. Thinking about other things like which of the Clans (if any) Grekkor belonged to would go a bit further towards fleshing out your character.
With that said, I'm still reasonably satisfied with your application, so long as you think about some of the above details -- since they do tend to come up in RP, particularly as your character introduces himself for the first time. So with that in mind, simply poke an officer in-game to grab your in-character interview, so we can get an opportunity to see Grekkor in action and give him a chance to introduce himself to our tribe of orcs!
Officers are Rargnasha, Kozgugore, Rhonya, Therak and myself. Best of luck!
...For the Blood of the Tribe~!