Here you have accidentally luck, because there exists a port of that brush set, and I know two other brush sets coming out of the realms of PS that were ported to Krita, but you should visit our forums resource category to find Krita brushes for Krita. You usually don’t buy a Porsche and screw an engine from a Ferrari or Ford Mustang into it.
So here you’ll find the requested Marc Brunet brushes:
And here is the forum topic about this bundle:
MB Starter Pack 2021v4 Recreation for Krita * RE-UPDATED! with Michelist quote in og post*
In the topic Photoshop common brush transfer, with original brush our forum member @Odzuki presented a set of brushes that exactly are what the title says. You can download them from here, since @Odzuki is currently not able to offer them via their own OneDrive:
I don’t know if you know Devin Elle Kurtz, but if you do and like her style of paintings and the brushes she offers, you will like her foliage set ported to Krita.
To download it, you have to follow the description I linked below, because the link on her blog to download these brushes was deleted as the blog was modernized (I guess they simply forgot to put it back online).
DEK (Devin Elle Kurtz) - Foliage & Grass Brushset for Krita by lobabrancrats
The question is what for brushes you want to install, from where do you have them and what for a file type is it (the file name extension would help us too, to help you further).
I’m away for about an hour now, if you can please try to answer my question.
Michelist