Your portfolio apart from the title doesn't really scream tech artist. Tech artist roles are different at all studios but all you mention that is really relevant is kismet and uScript but show no examples, and while useful seems more like a level scripter role. You also mention cascade and have an example of hologram…
I'd remove the zbrush guy, based on my own weird perspective. I feel if you have art on a folio, even as TA, then it should be close to production standards (sure, a nude male model is probably something of the highest difficulty). I think everything below that standard, even if they viewer keeps reminding themselves…