These look great! Don't be afraid to play with the background color as well.
Love the pictures! Very clever explantations! :) Maybe make the text a little bigger? Since the font is light on dark, bigger will make it easier to read.
Nice work.... I am also doing topoisomerase research and trying to isolate topoisomerase IA homologs from parasites.
Awesomatic work....was in need of topo info, got all in together.one isabella also worked on topo in italy, r u that one?