Seems like these sprites go well together. Would you be willing to combine them into one large submission instead of lots of tiny submissions with one sprite each? 

Cohesive sets of assets tend to get noticed and favorited more. They also make the archive easier to search and find stuff.

I don't know what that means

Yes. Similar to how I put all 6000 sprites into this one post instead of making 6000 individual posts with one sprite each.

No need to combine all your sprites into one spritesheet, though. Individual files are fine, but it makes it easier for people to find and download when all the files of a similar style are in the same place.