All Tomorrows

C. M. Koseman, creator of Snaiad, also wrote and illustrated the book All Tomorrows, a future history of the human species. Over millions of years, genetic engineering by both humans and hostile aliens leads to the creation of some truly bizarre monstrosities among our descendants. There are human races that resemble moles, dolphins, flounders, and even colonial siphonophores. A good overview of the book, including some of the art, can be seen at this link.