Being a monster is in her very nature :~D
What would have made a good picture is her expression if she actually made it into the tank!
Speaking of monsters... I think ours are a bit older than yours. Yours are quite fuzzy and still look like kittens. Ours are just miniature cats. They aren't fuzzy at all, and they look exactly like the full grown version, just smaller.
Poor Ben... The kittens came home from the shelter with a cold. They're all better now, but the older cat, Ben, who has never been sick before, is miserable with a stopped up nose and sneezing.