The mud seems about the same height to me, but it looks like only the two closer wheels are stuck in your pics.
EDIT:
I assume the log was to get you out?
GeneralDisorder and I went with a bunch of friends for some paintball on Saturday, and he brought his newly aquired Brat. Against my warnings he decided to take it into a rather muddy spot of the ranch we were at, and got a little bit stuck. He had to return later that night to retrieve his poor Brat.