Both are pieces based as much on the word as anything purely visual. In both cases we have a close-up photo of one of the small pieces making up the larger whole (although this applies more to Powhida perhaps).
The impulse for some people to react to Powhida's work by exclaiming "This looks like something my kid did in school" is likely anticipated by the artist. Don't worry! It is ok to have that reaction (this is written with no REAL solid idea that it is the case other than assumption, which, at least, is better than consumption).
The two artists fit well together because to GET Powhida's work you have to really stand there and look at it while Dalton's pithy, funny and true, statements are easy to digest quickly. It is a nice contrast.