[zeroxp]

When you say very different, you could have just said skittish. "It's skittish from what you intended". Isn't that much better?

[johnpublic]

actually, the website says "very different = distinct". So "it's distinct from what you intended."

Which I actually prefer.

[denton-scratch]

Not the same. "Distinct from X" means that it can be distinguished from X; "very different from X" means that it's hard to mistake it for X.