Take the following for what it'll be worth...
Keyframing/Script/Direction might constrain you to keep things largely the way they are now.
I played back your current WIP several times without really having anything stand out yet felt something was wrong.
Viewed a few more times... still nothing.
Closed my eyes and listened to the dialogue a few times through. Nothing.
Watched again.
A nibble.
You said:
QUOTE
The general consensus is that I can move the characters smoothly enough with appropriate arcs and weight etc but there is no acting - no character - just gesturing.
I agree with the general consensus.
I suspect its common in short pieces of animation to have a character demonstrate the dialog but for the character to truly think and act there must be something more. Bear with me here as I try to explain what I'm thinking...
In the WIP:
"That's all
you know about it." (The obvious emphasis would be to point at the person he's indicating)
"The
trees are altogether too green" (The obvious emphasis would be to point at the trees)
"and the
rocks are harder than they ought to be." (The obvious emphasis would be to point to the rocks)
In order to get into the character and have him 'think' you must break away from the obvious.
Definitely not easy.
I'm not saying you have to break away in all three instances (I like the last point... the rock the best out of the three).
I think there is some space for Pessim to act and think here though.
For the first instance you might have him turn completely away or fold his arms and hands. Perhaps look back over his shoulder a little?
He'd might still be pointing on the word YOU but with perhaps glaring eyes to make the emphasis
instead of his hands? His arms and hands would still be indicating his inner thoughts which is closed off, difficult to access... impossible to understand.
In the second instance perhaps he begins to whirl around to face his audience but then turns back again.
While he turns his attention to the trees perhaps both arms might go out (the first on
trees and the second on
green both in opposite directions) with Pessim now having lost all attention in his audience?
Finally, this gives Pessim a chance to finish his dialogue talking about the hardness of rocks.
What is his focus? What is he thinking about?
All this just words from me... thinking and enjoying the process.
You are doing just fine David. Keep on keeping on!