what PM said - especially the neutral wrist, this is very important - when you perform with the bell in your left hand your wrist is bent back - that will put you in danger of injury and will limit your ability to progress into heavier weights - use the old adage "there are no wrists in fighting" and apply this very strictly to your kettlebell practice. Also, you may want to grab your bell closer to the bend, as you get heavier this will help the bell sit properly in the hand and against the back of the wrist. and this might seem nit picky, but i believe it is worth mentioning, dont transfer the bell between reps across your face, i know the bell you are practicing with is relatively light, but either drag the bell on the floor above the top of your head or let the bell sit and move your body around to the other side, build habits with lighter weights which will transfer safely and effectively as you progress.