Can't Choose A Thumbnail for Linux Audio Pt. 3. You Can Help!

My Guide To Linux Music & Audio Production: Part 3 is almost ready to publish.

One of the last things is the thumbnail, and so far I've done 4 of them.
But I can't make up my mind.

This is the first one I did. But I felt it looked too much like the thumbnails from 1 & 2 based on colors/looks etc.

These are the thumbnails for Parts 1 & 2, just for reference:

So in order to make it more original I used screenshots from Renoise instead of Bitwig which means the colors are immediately different, and the look of the DAW is very different as well.

I ended up doing three of them:

Would love to know which one you think looks the best. Leave a comment below with picks 1-4. You could even pick a couple!

Any help is greatly appreciated, - Jay