RID cartoon concept art released

We've been getting a lot of TF5 Movie concept art released after the movie was over, and now we have a bundle of RID concept art released now that the cartoon is pretty much over.
There's about 60 bits of art so far released, including various characters that we won't see toys of, and other concepts that never made it into the cartoon.


I like seeing concept art that ends up evolving into something on-screen... but it's such a painful tease seeing concepts that never make it to TV or toybox.