You can do multicolor stuff like that using "print and cut" mode, i.e. you print in on your printer first and then the Cricut cuts pretty exactly around the image. I made my wife some spooky jar labels for some Halloween decorations that way. If you do decals that way, you want to make sure that your printer ink is somewhat durable to stand up to UV, water, etc. Most of what I do is "simple cut" stuff, although using this mode you can overlay vinyl to make multicolor things.
John