I made a batch of ginger mead I was not impressed with at first, after breaking it down into experimental batches and aging, it has come out stellar and it isn't given away anymore, as it has become stellar!
I would add some dryer mead to it then experiment:
1 Try and add a few cloves to a gallon for a few weeks, I have found others warnings about cloves to be useless, I put 5 whole cloves in a half a gallon and let sit for over 3 months, turned out awesome.
2 Try adding a bit of acid, then let age for a month to another gallon.
3 Like lemon?...put some lemongrass in another gallon for a spell, a different taste than regular lemon and you may want a bit more acid, but still worth trying.
Think of mead/wine making as being a gourmet cook, but in slow motion. you can always experiment, but try it in limited amounts and log everything you have done. Following the words of Ken Schramm, "the mead is yours, don't let anyone tell you how to enjoy it"...can also be applied to making it as well. Furthermore, post secondary additions are much easier to control and manage, all ingredients don't have to go in the primary or secondary stages of fermentation.