OSTs

KrainaGrzybowTV have released some of the music they use in their videos. As of .. (Revising user: ) there are 6 music-only videos. The creator has released a new album contains the OST (including some tracks that have not been posted separately on the channel).
All OSTs except the first one have a hidden message in them.
No.	Title 	Episode	Date of upload 	Hidden Message/Image
1 	
Work Time
(Czas pracy) 	1 	January 6th, 2014 	None
2 	
Worries
(Zmartwienia) 	1 	February 4th, 2014 	
Maggie's hand (3:15) and what appears to be a Morse code sequence
3 	
On the Wrong Path
(Na Złej Drodze)	2 	April 1st, 2014 	"ANATOMPUK" (spelled out in letters highlighted at several points in the video)
4 	
New Awakening
(Nowe Przebudzenie)	4 	November 3rd, 2014 	
Two eerie Agatha animations (3:39 and 4:07) and Agatha in a field with another Agatha superimposed nearby (5:10)
5 	
Late Mail
(Spóźniona Poczta)	4 	June 2nd, 2015 	
Some letters and postcards,
one showing an address (2:15)
6 	
It's Just a Game
(To Tylko Taka Gra)	5 	November 14th, 2015	
Agatha playing with a small figurine (3:15)
7 	
Time to Say Goodbye
(Czas Pożegnań)	6 	April 21st, 2017 	Agatha standing in front of a curtain in a quiet, eerie room, multiple flowers being thrown into the air at the same time (1:44)
8 	Confrontation(Konfrontacja)	6 	October 9th, 2017 	The word 'berkelesz' spelled out in highlighted letters