How about these ?
You can DL a trial copy
& still available on the Amiga :-)
This is a very Amiga style prog
Plus there is an older "free" version for download ;-)
Or if you can find it, search for "FBRUSH 1.1" or "Free Brush 1.1"
published by "AFEL" or "The American Free Electronic Library"
Its a very old prog (1996), but you can do allsorts of stuff with brushes (even more than DPaint!)