Maybe too much water - i guess the soil's looking very wet. By the length of your sprout, I'd say the light source is a bit too far from it.
And if it's right, your temperature is maybe too low for now, and humidity too high.
Level down the light and wait until the soil gets dried.
Some of us are born right handed and some of us left hand, some short, some tall...some hunched some bean pole.. Give it some time and watch that stretch, hard to say with the pic, but looks like the light needs to bump a bit.