Kind of mediocre
The most enjoyable part of this cartoon was how goofy the guy sounded when the giant lizard threw him out the door. The CGI used in this was really good. In fact, Henry was really the only character who seemed to be out of whack as he looked a bit too goofy. It is always nice to see CGI stuff being used on NG, but when it is, I kind of expect more action. The voice work was still good, it's just that it was a bit too short to recommend. I knew something that like was going to happen.
It is somewhat innovative because the style is different than a regular NG cartoon. Can you even use CGI in standard Flash Player? I suggest you work on having more jokes and having more a story which will work when it's longer. This was okay and it seems like there was more heart put into it than other stuff I have seen. Just work on more action and letting the visuals tell the story.