I would agree with @Geoffers747 to make the melody more prominent. The drone tends to normally be less dominant, being just a more background effect for texture and harmonisation.
You picked the perfect scale, was it C D E♭ F♯ G A♭ B C? It certainly gave off quite an Egyptian feel, which the brain automatically links to desert. It sounded quite desolate too, quite empty, again desert.
I definitely enjoyed it and await your next!
As for software, I use Finale Notepad 2012 at home, a free programme which has it’s limitations. For example, you cannot change time signature or instrumentation in-piece, which is extremely frustrating. You cannot bypass the inability to change instrumentation by just adding loads of instruments either, as there is a limit of I think 5 per piece. The other big problem is that the instruments sound a bit rubbish, for example singular violins and violas are unusable, and nothing provides me the really bass-y drum sound I’m looking for, the kind that makes your organs vibrate.
At school they have Cubase version something I can’t remember, and Sibelius 6. Sibelius 7 is the latest version, and is I believe fairly widely considered the best score-writing programme on the market. If Sibelius 7 is simply an improvement of Sibelius 6, it gets a big thumbs up from me. Sibelius 6 is great, easy-to-use and far smarter than say Finale Notepad, for example. Its sounds are pretty beautiful too.
I know FL Studio is popular, but generally for electronic music - I’m not sure it would be the right purchase if this kind of music was the style you were looking to make in future.
I’m not overly knowledgeable of all the good programmes out there, but I would recommend a Sibelius if this is the style you intend to continue with. If anyone knows of any other programmes though, I’d take their word over mine, as I have no experience other than my small amounts in Sibelius and Finale Notepad, and my miniscule amount in Cubase (which although I didn’t discuss, follows the similar line of FL Studio, certainly in terms of UI).