What standard does Minnesota law set for recounts in an election? If the standard is "a cross, or a clear mark, within the circle besides the candidate's name", then all three votes are invalid. If the standard says, "if the intent of the voter is clear, count it", then the first two votes are invalid, whereas the third should count.
The first vote is invalid because the voter appears to have made a cross inside the circle and then "erased" it by scrawling over it. The intention of the voter is unclear. In the third vote, the voter seems
to have intended to vote for Franken -- but the dot , but the dot in the "Dean Barkley" ellipse obscures the intent enough to make it questionable. The second voter clearly intended to vote for Franken.