This particular one have a compact growth, unlike other types where it is very cane like, this one appears in dense growth and the foliage is fragile. It has dark green edges with its midrib but the center is contrast with strong splash of creamy white that fades off as it reaches to its edges.
I believe it is the same one but this one is more exposed to sun and more of a matured plant and hence the growth and formation is very different but have similar traits. Perhaps it is another version of D.maculata - their names and ID seemed to difficult to confirm.
This is another miniature type that I had found, I believe it is very much like a compact version.
It may be dieffenbachia maculata compacta but only be known clearly when it is fully grown.
How to Care & Cultivate Dumbcane Plant:
Dumbcane - Dieffenbachia - Best Indoor Plants