Just a generic mix likely. Ears are too long and face too pointed to be a ND.
Not an english spot. That colour pattern is common is many many many breeds
I have seen some dwarf Hotots that color, but this could also be a Netherland. I believe the coloring is called "Piebald." His ears do look a little long and his face is a little too pointed for a dwarf. Not all rabbits born to dwarf rabbits end up as dwarfs. Sometimes a bunny is born that does not inherit the dwarf gene, so maybe this is a "false dwarf."
That term (piebald) is only used in Hotot and Dwarf Hotots, which this rabbit does not seem to be.
The color is "broken black otter".
It could be a Netherland Dwarf cross. I would also believe it if somebody told me it was a poorly bred (pet breeder) Netherland Dwarf. Definitely not an English Spot cross