It's a nicely executed little story, with great visuals and animation. Top-notch sir!
I was first impressed with the fantastic animation. It's smooth and natural, even among those pesky small and slow extra details that normally give people trouble. One detail I liked was the multitude of motion. (For example, at 1:38, the horse is moving, the guy is brushing him, his other arm is moving, then he leans over.) It's all there, and while extra work, it certainly adds depth and life to the simple little clip.
The concept is one of those simple, ludicrous, and endearing concepts that works really well with Lego. It takes a goofy idea (the horse's running style) and plays with the logical consequences and implications of that within a fun and innocent story. With the exception of the voice acting seeming a bit off at the start, the dialog flowed well.
The sets are fantastically constructed, and the jousting set is impressive for the detail included in such a big set piece.
You continue to impress Twickabrick.