I'd have to agree with niinasalmelin. The synopses for Vigilance and Drakon Forge sound like they should be at home within the action/adventure genre, and unless you had an established fan base before coming to Tapastic, there isn't much you could do to boost popularity. (Except for making a good comic of course, which by the look of both series so far, you likely have nothing to worry about
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I had a similar problem with categorizing my series; in fact, I still have have a problem trying to increase my stories popularity.
Age of the Atroximals
The conflicts between humanity and mutants, known as Atroximals, spanning throughout future generations, with stories illustrated by different artists.
At first, I wasn't sure what genre to describe it as in general. It has monsters [horror] but all the stories take place in the future [sci-fi]. I could decide between the two for some time and finally asked others for help. Many said sci-fi and looking closer at it I had to agree, since the constant theme that connects all of them is the future. Monsters do appear but some stories aren't written to disturb and unease the reader. What may help you decide on a genre is that have to think, "What is the constant that connects each episode?"
For trying to increase popularity, I tried writing on forums, posting updates on Twitter and Facebook, paid advertising, giving each story its own page so new episodes alert potential subscribers, etc... and so far I only have 60 subs total since last year as I write this. It's going to be a long road to 500 but if you keep updating regularly, upkeep/gradually improve quality, and keep everything interesting, more people may take interest.
Hope all of this is helpful.