Not at all...
There wasn't any ambiguity to "Mr. Ambiguous" at all. To be ambiguous would mean that he didn't tell anyone one way or the other, leaving them in total confusion as to whether or not he was gay, and with nothing more to go on than his mannerisms, which could be seen as either gay or straight depending on personal opinion. The fact that he specificly says "I'm not gay" destroys all ambiguity about him. He was obviously either gay and lying or straight and flamboyant.
Other than that, the graphics were okay, the voices were done well, the animation needs some work, and I didn't find it very funny (mainly because he wasn't ambiguous).