You lose control and flip the club when you remove your pinky. This is is exactly what you want in these kind of shots. It's not commonly known, but tour players use it quite a bit.
The toe should make contact with the ground, not the heel. Also your arms should swing to the left. Watch this video to learn why, as well as to review.
Putting is the difference between winning and losing. Here's what you need to win.
Finding Your tempo is one of the keys of this game. Use your putting stroke to find what is natural to you. This will be the tempo that you use in the rest of your clubs.