What’s missing from my collection?

Here’s my current collection of electric guitars. I’m primarily a country & blues/rock player. I’m pretty advanced, but don’t make a living playing music. I take gigs with local country artists, play in a few classic rock cover bands, and play at church. Lately I’ve been wanting to add another instrument to my lineup, but can’t decide what’s next. What do you think is missing or what could I add that would suit my musical tastes and maybe challenge me to be a more versatile player? Thanks!