I've been working on a story idea for a few years now, during which I designed a world (fantasy-based) in which it would take place. The thing is that because this is a different planet, I thought it would be cool to create a world without any humans or any animals/plants found on earth. While thinking about it, however, I've become concerned with the thought that maybe a world without humans would be too difficult for readers to relate to. Even stories/movies such as Star Wars, John Carter, etc. all have humans found throughout the universe.
Even though there are no humans in the world I created, all the races are humanoid, and the plants/animals are mostly similar to earthly/fantasy plants/animals, which I thought may be able to give readers a base to start from.
So I guess my question is: Is a world without humans just too alien for a reader to get into? or do I need to re-design my world to include humans (and possibly other "already known" species)?