It's interesting.  In the preview image, it's hard to tell what it is, but then when you look at it in its original size, you can tell that it's a barrel. :)

Here's my attempt at making something that looks more like a barrel at all sizes ;) The first one is 16x24, the second one is 10x17, just like the original.

@usr_share the 10x17 one looks very nice.

@usr_share Taking notes here, nice use of outline.