I'm going to but in on this one, but, as a texturer I can honestly say that Psytrance's set is similar to Ern's, but not exactly the same.
Ern's set has darker colors and is a bit less complex in the structure and work, where on the other hand, Psytrance's set has a more complicated structure. Certain parts have the inverse color done to it, like on Ern's set, it's red, but on Psytrance's set, it's a gray or silver color. The structures are similar, very similar in fact.
Look at the thighs for example, they share the same shape, but look very similar, the same with the heads, there is a spot on the top back to the head, it looks like Ern's head on Psytrance's with a lot of edits.
But yeah, if you did it Psytrance, you did it, if you didn't you didn't. Take it on the chin if you did, and I think Ern (if he wants it) should get it