It's possible someone came up with a design similar to the Theseus on his own, so let's not start pointing fingers - even if the spine and the whole side view look like a Theseus ripoff. The design itself needs a few tweaks as some of the proportions come off as odd; the pods are too thin and flat, the head small and could use some more curves, etc. As it is, the whole shape looks a bit.. raw to me.
Now, with the rest of Slayer's and canon designs we yet need to do, we really don't need this one. What we do need is artists who can uvw and texture their models on a level satisfying our standards. This was said before but I'll say it again: we don't need modelers only.
Also, every now and then somebody offers us some ship he/she found that doesn't belong to them, assuming the original author is even interested in working with us. That's also not really needed, and one hell of an assumption to make. Let people apply themselves. If you think they might be interested link them to our forums/site/moddb page; if they want to join they can contact us from there.