Created a Cinema4d skills test, how does it look?

[jsmarterer]

Our community created a skills test for C4D users to test out their knowledge of the software. We'd really appreciate it if you could take a look and give some feedback.

http://smarterer.com/tests/cinema-4d?c=forum-c4dzone

The test does ask for users to create a free account but info is kept completely private and we don't spam. Some people thought this was a data mining effort, but we just wanted to see if the more experienced users here think the test is up to snuff. Thanks!