Well, well, well. What have we got here?
In my opinion they look pretty nice, especially the first one, it's wonderful.
The third one could be called just "siamese goombas", because it (or they) sounds to be stuck. Anyway a great job.
I've just downloaded the pack, and I notice that effect-84 looks to have 1x1 pixels. Maybe I could err.
I expect a koopa npcs pack too!