This was the dog logo before the retopologizing with 10.220 vertices:

So, after the necessary retopologizing, I only had to do a “Bridge Edge Loop” operation to the now 40 vertices of the outer circle (reduced from 336 vertices):

The logo now has 3.639 vertices.
The black parts alone count 2.303 vertices:

The retopologized logo counted 2.494 vertices before connecting the separate parts:
