Childish? Stupid? Embarrassing? Pick one, or fill in with your own adjective. Someone else might be worried that it's simply unimpressive, the bland, earthly nature of these things — except the cloud, which is only here because it's what they had on hand anyway. That is still floating serenely about a foot and a half off the ground, looking so picturesque it looks fake, like something you'd see in an animated film. Like if you put your hand on it you wouldn't feel anything at all.
(It's solid, though, much more so than a real cloud, though with some give to it, like a soft mattress.)