I love this. Nice work.   

I think the lights should be brighter, but it's a cool animation.

Love it!

...maybe the shadow from the pumpkin carving device (PCD) should be bigger...also the shadow should appear on the pumpkin when it is underneath the PCD

Oo, that's really nice, it would be so cool if you made an entire isometric room out of this.

That looks nice.

Thanks. When I was first plotting out the dimensions It had 2 alternating pumpkins on belts side by side, but the 2nd was heavily covered by the actions of the first and just looked messy, so opted for a single.
I agree, both the pumpkin and tiny parts of the background could use a bit more detail, but didn't want to over do it, but as the upgrading is on going it may happen in the future

Now that is really cool. Maybe, if you really felt like it could have two alternating pumpkins, but still awesome animation, with a worthy background. The pumpkin is very 3d looking(though you may want to add a bit of shading towards the lower left corner.