I have painted up the first of my Tengu Models Grey Aliens.
They were a delight to paint and full of character:

I also painted up my Men In Black that I have had for a while (I bought them from EM4 miniatures):

And I put them together to give an idea of scale/height difference:

The Greys have yet to be based, as I need to buy some more bases, but I put them on top of a couple of bases I borrowed from other miniatures to help give the scale.