your chords are a bit bright and/or too close to the front of your mix. Idk if it's the mono quality or just the volume that makes it stand out too much. It needs to blend in more with your other sounds but at the same time, needs to be less muddy. I also agree a solid bass line would help too. Another suggestion is layering your sounds a bit more. add a clone to every sound and either raise them an octave or drop them an octave and blend accordingly
I've been loving the cloning method whenever I make my basslines or main melody leads! It is really helpful so you don't have to keeping adding on more synths on the timeline thing
For those synth stabs you could try eqing, panning, messing around the effects, also automations too. What I like to do is automate each thing so I get more of a variety of what goals I'm aiming for to make the sound much thicker and more lush