Reminds me of the deer head I did up a couple months ago. A bit of an intimidating task before hand but I learned a lot and the organs were worth it.
Is that a small edged knife you used to get the eyeball out? Extracting the eyes was the hardest part for me and took quite a while. A word to the wise; grapefruit spoons are not useful in this situation and should not be attempted.
The brain is really quite firm on a steer. The deer brain was quite a bit mushier, more akin to a thick pudding.