This is such an awesome and comprehensive bundle, thank you!
I feel like this is one of those sets (like the Deevad bundle) that you could easily just use instead of the default brushes and never have to look anywhere else.
One suggestion that might be useful: I see you had a “Lite” version of the previous bundle. Something like that is really appealing to a noob like me, keeps the set from from seeming overwhelming. But maybe instead of a full other “lite” bundle, you could just have another tag in this bundle with the “top hits” (Concept V2 lite or whatever). Then it would be easy to just quickly narrow it down, and as you get accustomed to the brushes and style, you could work your way out to the full bundle.
Obviously that’d just be a bonus 
Oh, also, maybe a silly thing to mention, but: I appreciate the brush thumbnail style you’ve used here. I’m not a Photoshop user (pretty new to digital painting in general), but I find the Photoshop-esque style thumbnails bit easier to scan through at a glance. It’s more abstract (in a good way), and there’s more real estate given to the effect of a given brush instead of, say, a picture of the traditional tool it’s similar to.
Anyway. Thanks again! Looking forward to playing more with these.