To da mountain : I like the arrangement it a nice composition you have good ideas. The first pad I think it would make more space if it wasn't holding the note all the way through, let it breathe a little bit. The drum sound a bit "MIDI" I would suggest you seperate the drums in all different parts, kick, snare, hats, crash, toms, etc, and pan accordingly, it will help you have a way better audio spatialisation in the mix.
Chill hiking : I think the melody is very nice only somethings the voicing in the left hand can get some work, you can open the chords a little bit because somethings the left hand note are clashing a bit with the melody. You can also probably use other piano samples, there is a TON of free amazing pian plugins.
Holy ground : Sound holy indeed, good job on that, I like the arp, just watch out for the reverb getting too much muddy in the mix especially in the mid-low mid, if you cut some verb frequency to around 500hz (tricks by Ty) you'll get a mix alot clearer.
Might seem a brutal comment but since its unranked I went all in to give my opinion, so don't be offended it seems alot but its some nice tracks overall :)