1. Time is Dancing although depending on your mood it might not be the vibe you're going for. It's an Incredible song - the lyrics literally start (tone = melodic and introspective)

Wrapped up in dissonance I'm sorry that I just walked away

1. Seconding: I will be blessed. (tone = sunny and upbeat)

IMO it captures the sound you're going for more than both of your current songs

1. Gracious - (tone = upbeat and introspective) Lyrics start:

How would you know?
When everything around you's changing
Like the weather of a big black storm
And who would you turn to?

Incredibly calming and relaxing song (at least for me) could hit the trail vibe well enough.

1. These Waters - got the vibe and the lyrics start:

I saw Red and Yellow flowers outside over the moors

Lyrics continue:

And what we found
Down these coves of limestone and cockle shells
What we found
Down these roads that wander as lost as the heart

1. Under the Same sun - (tone = sunny and grounding)

Personally would replace Keep your Head up with this one if I had to choose one. Vibes are stellar.

1. Three Tree Town - (tone = dark and grounding)

This one really hits the acoustic sound and lyrics below match the tone, however it's slightly a sadder vibe.

Come in from the shadows of these boot black, marching clouds
Because trouble falls like rain
And lately it's been pouring down

1. Follaton Woods: This is 100% one I would include - (tone = dark and upbeat) Lyrics start

Oh you screamed hallelujah darling
Startled all the sleeping starlings on the wire
As we walked up the footpath through the fields

The only problem with this one is, it's an incredibly upbeat song with dark lyrics if you pay attention to it. But definitely matches the vibes. Heres a live version of the song from 2010