Very good, or as we Klingons say
maj Qa'!.
I happen to know a lot about Klingons(I'm also administrator of the
Klingon Imperial Forums(klingon.org/smboard) so I might be able to help you flesh out your characters species and homeworld better than I can for some of the others. You may or may not know this stuff already, but I wanted to make sure I brought it to your attention.
We are already planning on having a species of
Klingon Jackals from Rura Renthe. I'm not sure if this species would fit you or not, but it looks like a good match from your description. You are welcome to base your character off that species or not as you please. At this point I haven't developed anything on it (it's priority 6 on my list right now and each priority has 7-10 species in it), so it's pretty much a blank slate.
The only other species I have planned that this could be is the
taD arctic foxes from a planet the klingons call
taD. I haven't actually read the book yet, I'm so far behind on my reading... The reason I chose foxes is that a male fox is called a 'tod'. I have a few loose ideas for this race, but it's also pretty open too(priority 7). Your bio sounds like you are a bit more fearsome than a fox though.
I'm not trying to limit you, just share my ideas to see if there is anything that clicks with you. If you want to be your own species and want to be from
taD or Rura Penthe, or if you want to develop your own homeworld that is no less shiney.