Is my Logan Grimnar "Wolfy" enough?

Some months ago I printed a single Terminator, made him a cape with greenstuff, painted him and named him a Logan Grimnar proxy.

I used him alone, mostly staying in reserves or in the backline and using his ability from there. Since he was the only Terminator in my list, he was easily identified.

But yesterday I got some second hand very wolfed up models, and I don't think he keeps up with them. Should I descend him to a simple Battle/Pack Leader? If so, which is better?