I checked sections from a few songs, and there's definitely more melodic thing going on than in most of the worthless shit put out these times, but it boils down to what final vision you have for each keyboard sound. What kind of vocals? Some songs could have pig squeal in them, others sound like Nightwish. Darken your tones and make something personal. Something I don't like is when it speeds up with melodies for no reason. I'd say darken the tones, don't be afraid to add industrial elements, and maybe go with some type of weird extreme vocals. I know most garage metal bands want to be like the other rock stars out there, but if you can't do that, then be realistic and choose a more narrow category/style/genre. If your music is a mix of everything, likely nobody will care.