ok, here's the thing, your orchid is 'creeping' towards the light. i call it 'reaching for the sun' personally, as basically the plant is trying to position it's leaves to get the most light. for people who grow indoors near a window, this is a natural growth pattern, as without the light coming directly overhead as it would outdoors, the plant will position itself at an angle towards the window. if you had better overhead lighting, this can almost be eliminated. some people will regularly turn their plant around so it appears to be growing more upright. but in the wild, most orchids are not growing in a perfect spot, and certainly not in a pot, but actually clinging to the side of a tree trunk, so the sideways growing is perfectly normal. and as someone else pointed out, growing sideways like this helps to keep water from pooling in the crown and causing a rot. the ones i have mounted into an artificial tree truck all grow sideways, reaching towards the window, and at first i thought it odd, being used to perfectly grown plants coming from nurseries with overhead light or even grow lights, but in time i got used to it, and now it really seems very natural to me.

once a plant has grown this way, if you turn it, the leaves will slowly try to shift towards the light again over time, but in my opinion this makes them look messy. also i think it takes some of the plants strength to try to correct itself back to the light source again, so i avoid re-positioning them.