First tip: hands have four fingers & a thumb, not 5 fingers & a thumb
To get a better general idea for the features of your hand (if i had a scanner this would be far easier...) an easy way to start is to trace the contour of your [non-drawing] hand a few times each way; [most with your palm down for easier tracing] fingers spread, fingers together, fingers together thumb out, closed fist, closed fist thumb out, closed fist pointing, any other general position you want to get the hang of, then keeping that hand next to your sheet, fill in the details as best you can, then flip your hand & use one of the doubles you made of same position--both sides have same contour... this will give you a good idea of the features to cover... If you meant for your klyros drawing for example, you would be wise to start from pointing finger, then thumb, after that just use 1 almost straight line each for middle finger ring finger pinky, don't be afraid to make each finger shorter than the other (in the order i said) because if they seem short they can easily show from the other side [
http://www.anderson1.k12.sc.us/schools/wres/pta/Chicks%20with%20Checkbook%20images/Hand%20art.gif ]
Some preffer to keep the middle finger longer, as it should be if rendering, or looking from an appropriate prespective; but the angle your klyros suggests the middle finger would look shorter, or at least be partly curled (as is the natural state for most fingers
http://www.eyetap.org/~samyip/home/artWorks/drawings/hand.jpg ) and thus start as a single line on the outside, and end inside from the pointing one.
Hope I've been more helpful than i was confusing...
