Hello. The clockwise rotation would be the same irrespective of which perspective you approach or which direction they point towards (up or down). You may either visualize "seeing" the chakra from the top of your head and spin the funnel (if is the chrown chakra, that is), or visualize looking at yourself with the chakra spinning etc., or with lower chakras, from Heart chakra and down, I normally lower my head and try to move attention to the area where the chakra is and try to will it to spin, this may not necessarily be felt always but it is the attention and focus that matter.
The clockwise rotation involves spinning the chakra from left to right, as the second hand/needle on a clock (and the other hands) which always moves towards right, but of course far faster, as fast as you can visualize or will. If you have a pyramid-shaped object at hand you spin it clockwise, from left to right, in both "perspectives" (with the tip pointing either up or down), it would be exactly the same for the chakras.