Is everything's OK ?

Here is my plant. Is everything ok with it ? Thanks.
http://www.part.lt/img/77e98e5699701f61c00d9ec8dd6fec57108.JPG
http://www.part.lt/img/a279adae73de3be3fcb30e759aecc6bd502.JPG

Looks like it needs more light. A windowsill ain't gonna yield anything.

I would repot and fill it higher. Why waste all that empty space when roots could be there. Also, soil looks like it needs perlite.

I totally agree with GrowinDad here regarding the lights. You should also peep this thread: https://www.rollitup.org/newbie-central/429767-replant-those-long-stretchy-stems.html

-spek