Yeah, good eye! These were made over a period of about a year, which is a really long time now that I think of it. The 3 on the right are the more recent ones
Very good, were they all done at the same time or over a period of time? I ask because the 3 on the right look like they were done in a slightly different style, the shapes used seem better.
Love them :D
The last one seems from a cartoon!