Welcome to Gaia! ::

Also, as a quick note, the meaning you have down for Yuri's name is a bit superfluous, so I did a little digging; Yuri is a variant of the Russian Yuriy which is the Russian equivalent to the name George (Greek origin) which, very fittingly for his soul and essence, essentially means 'earth worker'. Just a neat little thing if you wanted to include it.

SO, first bit:
When I was reading Yuri's personality, I noticed I didn't really get any sense of personality traits that came from his essence. He is just entirely a wolf, in every sense. I'd recommend picking up on some of the traits from the bone, like the fact that it can repair itself; maybe he does well in diversity and is able to pick himself back up out of funks and emotional upheaval well and doesn't need to rely on others to do this. Little things like that will make a huge difference!

Another thing I noticed about his personality is that, like with his desire to chew bones or stare down mailmen, as well as a lot of his dislikes, it seems a bit puppyish? I think these are fine traits for frei stage, but they do make him seem young minded. Try to find some more mature behaviors and interests to field alongside them or expand on the existing traits in various ways. Such as, with the mailman thing, is it only mailmen as a trope or is Yuri territorial? Is he confrontational? How is his fight or flight response? I assume you know that staring directly into a wolf or dog's eyes is a challenge of dominance, so how does this extend to other people?

Be careful of too many tropes or stereotypes with wolves, too. For instance, the pack mentality is often believed to be about family when it is in direct reference to social hierarchy. Yuri believes himself to be the alpha but there are more places and castes in a pack than just the alpha. How do his friends and guardian fit into these different levels within his pack and how does he treat them individually as well as in groups? If he is the alpha, does he try to assert dominance over everyone in his "pack" or does he merely do this with Yves because he feels he is being challenged? Would all raevans fit into Yuri's pack and be organized thereon, or would Yuri have a unique way of grouping everyone into his pack?

Overall, I just really wants to know more about how Yuri is with his friends versus how he is when lone wolfing it. How does he change?

Now, onto the essence with feeding and powers. His bone regeneration power is solid and goes without saying, particularly in regards to his own skeleton. I think the fact he can also help repair other people's bones is good, but I might advise splitting it into a different power to better provide more insight into the differences between it being passive/active (this one is 100% active while his own bones can be both).

I would say, for his heightened sense of smell, you could just go the extra mile and say heightened senses. Wolves also have impeccable hearing compared to humans and their sight is especially keen. It might also be nice to work in some hunter/tracker traits into his personality beyond simply chasing the cats (perhaps something more sophisticated and less for laughs).

The main power that is of concern to me ties into his feeding. The ability itself is not a worry but I feel like I am not understanding its process and limitations correctly. This could easily be fixed with some elaboration. In particular, with the bone drain, does Yuri need to be in direct contact with the bare bone? Assuming this is not the case, this could be an extremely dangerous power for Yuri to have as he could effectively destroy someone from the inside out. Be careful with that. More specifically, when you say he feeds on the life of the bone and then the bone is empty, it seems to me that he is draining the marrow? There is actually a lot you could take and incorporate from bone marrow into his concept.

I think that's all I've got for right now but there's some things for you to think about! You might also consider looking into totems and spiritualism surrounding wolves, as well as some forms of divination that use bones for fortune telling. You might get some neat ideas for more powers from there! That and, perhaps, lunar cycles (hint: look up 'lunar madness' and see if it interests you).