If it is a brand new Dovo with the factory edge, then it will take a lot more honing than what you have done, a whole lot more.
My best recommendation would be the send it out to be professionally honed - costs around $30, and there are honers listed in the classifieds.
This will also give you idea of the sharpness that you need to obtain when you start honing for yourself.

Since you already bought new hones - make sure that you flatten them before you sharpen a razor on them.