The not so good voice acting really hurt the jokes imo. Not the worst voice acting I've heard at all, but the characters felt forced with the intent to only mimic. Geodudes troll faces resembled hellbenders alot, but I think this was a form of respect. Clearly the animator(s) likes the work Oney and Pebbles, and I feel they tried a form of flattery here. The "1" frame silly faces then cut to the next shot are another example of this.
I think if the voice acting was better, this would have been a pretty funny vid. I'll SUB and be sure to check out later vids from this up-loader as I see good potential :)