The head doesn't make sense in the tileset, because as a 2-d art, it won't be realistic lying on the floor like that. People will still want to get a model of a head to place it there, instead of using this tile.
Although everything appears to be CnP, it may approved in terms of usefulness, but you should modify the tileset a lot more, such as the blood becoming less bright or removal of the blood's stroke or multiple variations of the hand. The hand and the footprint are way too big for a Warcraft III environment, because it forces the map creator to scale up the models into fitting the tileset.