I like the way for your resource gathering and that the garbage after some time sinks into the ground. It's a bit difficult to get where to click on the bottles though (or rather which part of the cursor is the trigger point).
And it seemed that when they start sinking they're not clickable anymore. This could need some extra feedback.
I liked that they got announced through their shadow.
After the big bag arrived the performance tanked quite a lot, though...