Did you see this one? I bet Barbara thought I had lost the plot with this one !!
I looked at this border plate and the first thing I saw was this creature - it was just missing an eye but there was a nice little shape that does the job perfectly, Then I realised there was another facing the opposite way! Once I saw them I couldn't get past if you know what I mean so I just had to use them before I could see anything else!
I used the nested square to make the central square , then various bits of the border to create the "waves" I added a background from the landscape plate gave it a title of sea monsters and added some other swirls to frame it