Amazing how a different background can make a level look totally different.
Going through several levels always with the same background can cause the game to look visually dull, so as the player progresses in the game, the time will progress too and the background will change according to the time of the day.
Here's some of the new backgrounds:
From now on I'll post less frequent updates and keep the surprises for the full version.
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Johnny Look 
Especially the twilight and the old nighttime ones.
And yeah, you're right- it totally changes the level, feeling and all.
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