Fail2ban is a console application so screenshots are not really impressive...
Map of attacks
A map showing the location of a few attackers who were detected and blocked by Fail2ban. The target was a server based in Switzerland. Note the narrow distribution of attacks coming from Europe, Asia and the east coast of North America.
The new version of Fail2ban (0.7.x), currently in development, gives information about the number of failures, banned hosts, etc. They can be used to plot graphs using RRDTool or any other tools.