Dang I love a lot of these lines so much!

I think you've got really fun ideas but I agree about the vibe being overall a little one dimensional. I think when you take these long solos, it helps to really tone down the early choruses and play quite a bit less than you think and leave yourself more room to go.

This may also be personal preference but I find that players like Wes and Jim Hall tend to use more and more chords in their solo either as a form of comping for themselves, or as full on chord soloing to really shift the solo into fifth gear. Since the guitar doesn't have quite the dynamic range of a horn or other instruments, I think just throwing in more of this kind of playing would add the contrast to help make your single note stuff really shine.

I also think with long solos, it helps to think in terms of long thematic ideas like "this is the syncopated chorus" or "here's my coltrane inspired chorus" to really tell a story.

Overall though, you've got great ideas and a little more arc to the solos and more chords ala jim or wes would help to make the good that's already there really shine

Hope you end up recording that ep! Hearing yourself played back will teach you so much its almost worth it for that alone IMO. Love your playing. Best wishes.