Animation: I really can't say much here. You used valve's defaults.
Model: It's pretty much a cylindrical shape.
Originality: It's a nice idea but done pretty bad.
Texture: The texture is the part that is the worst. The paper roll itself looks like it was done in paint. And the coin inside looks sorta....like paper.

Well - its a simple cylinder - no detail here. I actually have no idea how this gonna explode anyway. Original,but useless

Omg it it too big.

Good model. Perfect for a coin model...

Great originality.

Nice animations.

Needs a bit better skin. A bit more detailed. It should look like cardboard.

Awesome job and as for the model size thing that Doom was talking about, I think any smaller and it would of been too small and the model is good. Coin rolls are not very complicated at all so, yeah.