Sig 1: 7/10 - This is a great sig! the text is good and i like the black splotches around the edges. I think the text placement could be adjusted just a tad so its not totally centered. Id move the render a bit to the right as well

Sig 2&4: 8/10 Gif sigs are hard to do so props for doing them so well! Having 3 renders in the 2nd one isnt ideal as the eyes arent totally sure where to go, but i actually think you did it quite nicely. In the 4th one the text takes up a little too much space imo tho its a subtle text so i like the way it works out

Sig 3: 9/10 - Im not a huge fan of the loooong sig and having two renders on either side, but that text effect is poppin so you get a 9

total 3.3m x 2=6.6m