First of all, the process of making a comic involves a huge amount of work and commitment so one of the first things you should do is to outline the general scope of your project. A short five page story has much higher chances of being produced rather than three hundred page epic.
Second, in order to make someone interested you should outline the general motif of your story. The piece that you provided is a generic start for a fantasy story so currently it's impossible to tell how do you want to develop that story further; small details won't work without a strong backbone.
Third, what can you do besides writing text? Do you have any experience in reference hunting, can you draft or model in 2D or 3D, can you do anything else to take the workload off an artist?
And the last but not least, every artist who has enough persistence to work on comics already has its own project to take care of, paid commissions or both so how do you plan to make someone invested in your project? If you aren't offering any monetary compensation then why should someone put aside its own project and focus on yours instead?
To be completely honest, the best way to play this game is not to play because comics are excruciatingly hard to make and if you don't have an agonizing desire to tell a particular story and the only way to tell that story is to make a comic then don't even go there, you'll save yourself a lot of time and nerves.