There's not much to critique so far but I'll give my initial impressions on what's been posted.
First off, I'm really enjoying your panel layout. Each page feels unique and the panels flow together very well. One thing I'd look out for is your use of black in a panel that's on a black background. While it's not the worst to look at, the panel ends up blending together with the background making it difficult to distinguish (unless that's intentional).
This brings me to my next point - colour. It's always a bit of a letdown when you start reading something in full colour and then it switches to black and white and this is no different. I'm not here to say that you should go back to colouring each page - I'm sure you have your reasons for making the switch (assuming time) - but just know that it can be a deal breaker for a lot of people. That being said, the colour added to the panels adds a nice bit of emphasis to certain panels.
As for the story, I can't really say much about it because there hasn't really been enough time for one to form. Looking at the synopsis you posted, it looks like it can be fairly interesting if done right. It might be a bit generic depending on how the idea is executed (since it doesn't seem the most original), but it'd be a bit presumptuous to assume that off a 5 sentence summary.
Lastly, I'd slow down on the bonus episodes. Having too many can feel like bloat and deter people from subscribing or encourage people to unsubscribe. Unless you have an audience extremely committed to your work, I'd space out the "filler" posts a bit more or combine them together into a longer release.
With that, reviews are open again! I'll try to get to them a little quicker this time, but I won't make any promises I might not be able to keep.