The Kryton portion of the logo is the same so it's all good. Adding on top like that is perfectly acceptable. I had thought that the beast was going to be smaller than the word Kryton, but now that I've seen it bigger, it adds that certain intimidating factor that I think the beast needs. Might even consider the eyes inside the claw marks.
One thing I would like to note. There is NO WAY for me to distinguish the two tone entry when it's engraved onto the host. I should have stated it will be ONE TONE. positive no negative. I think the best way to envision this is your paper is black.. and you only have a white pencil.
Needless to say, the entries thus far are promising. I'm not going to make statements to the positive or negative on any entry as I don't want to offend anyone because my tastes differ from yours. Each persons talent and creativity is a reflection of each individual person and as such, is beyond reproof.