You can change the colors, layouts, maximum number of words, fonts etc. Very, very cool.
I wanted to base it on something personal so I got all the text from my deviantART journals, going back to 2003, and uploaded it to see the results.
The good news is that now subscribers can make your own word cloud based on your deviantART journal using the feed available to subscribers at [link]
Below is one based on my journal and some others by deviants:
You can even base it off your own writing:
or the comments on your most popular deviation: