i cant believe i'm going to put this, (dont start)
The first one looks good, but it's a little Monotonic, and i think i see what you tried to do (make it like night vision goggles on the troops? if so i'm sorry for the monotonic thing, and you could improve the look of it by adding some dips in the top and bottom centre.
the second one is a fairly need idea, but the text could do with being in a different place, and it would look heaps better if the cat and the mouse werent blurred quite as much.
But, these are just my opinions mate, keep up the work and you'll advance fairly quickly if you have a good enough imagination.
Alex