sorry for the trouble, first time here, I would like to pack them together but there seems a limit that a picture is up to 100x100 pixels...
thanks for the advice, I will try to polish the coloring.
If this batch of sprites are for the same project, I recommend submitting them together in one image, so that they can be seen with a little more context.
All of them could use a little more pixel-level polish in their colouring, they all have some single-pixel noise that doesn't really serve them, and some redundant colours.
The preview image must be 100x100 or smaller, but the "detail" file (the full-view image) can be any size.