Comparison of examples in incomplete dominance and Co dominance
Mosaic dominance

I think your confusion comes from the statement


  incomplete dominance is also known as "mosaic dominance"


I had never heard of mosaic dominance before and I could not find much on this concept. I found a few papers but they either referred to mosaicism (see below) or they did use this term only a few times without defining it. There is an entry for mosaic inheritence in the online medical dictionnary though (here). The definition they give is


  inheritance in which the paternal influence is dominant in one group of cells and the maternal in another.


It is a little vague to me as 1) the phrasing is a little unusual and 2) it does not specify the underlying mechanism. If anything, it feels like a synonym of codominance and not of incomplete dominance.

Mosaicism is a thing in genetics but it is mainly unrelated to the concept of dominance as it refers to genetic polymorphism among cells within an organism.

Where did you read about mosaic dominance? Can you please give a direct quote?

If anything, mosaic dominance sounds like a synonym of codominance and not a synonym of incomplete dominance.

Codominance vs incomplete dominance

Outside the above issue, I think you pretty much define these two terms through your examples. You might want to have a look at the post (although it is a post who did not get much attention)


How is incomplete dominance different from codominance?


In short, codominance implies that the specific phenotypic effect of each allele is being visible in the heterozygote, while incomplete dominance implies that the heterozygote has a phenotype that is somewhat intermediate between the two homozygote phenotypes.