I'm nervous about you just adding more reverb on channels, or pads, etc. I think I like the stabby in your face mix here.
What I would try next is some sort of stab sound with long reverb tails and sidechained, etc. that comes in every once in a while. This can add some more character and layering in there, without the whole song getting a wash of reverb, tone, noise, etc.
Try taking your second bass "fart" sound to complete mono, to contrast it with the first one in stereo (or do the opposite). I think you'll get some more texture and character that way too.