Things to improve the Copper Golem (In my opinion)

1-. In Java Edition, only ONE Copper Golem can interact with the chest, while the rest must wait for it to finish before interacting with it. That makes the process very slow.

2-.  To make storage of items way faster, Copper Golems should be able to grab a different number of items depending on how the items stack.

If the item stacks at 64, the Copper Golem should grab the 64 items.

If the item stacks at 16, it should grab the 16 items.

And if the item doesn't stack, the mob must grab 1 at a time.

3-. Instead of looking the chests one by one to see where is the one that has inside item they bring, Copper Golems should detect which chest is correct one and go directly.

4-. I would like that to summon the Copper Golems you have to put a lightning rod on top of the pumpkin. 

5-. The third pose of the statues is crooked in Java. In my opinion, this pose of the statues would look much better if it were absolutely straight.

6-. In Java, the fourth pose of the statues is asymmetrical because the Copper Golem isn't centered properly within the block, while in Bedrock it is. This should be fixed.

7-. In Java the statues are waterlogging blocks, and I think that it is a very good mechanic to decorate underwater buildings. Mojang should implement this watterlogging mechanic in Bedrock statues.

8-. In Bedrock you can put Item frames in the Copper Golem statue, and unfortunately you can’t in Java. I think that it should be able to do it in Java edition.