Everything looks normal to me. The new leaves may look different to you because they are only growing from one side of the stem, rather than having two leaves growing at once, opposite each other, as happens when you grow a plant from seed. Time is right for some training. Not sure if you can move your lights a bit closer or add some more lights, as your plants seem a bit "lanky". Extra lights will pay big dividends when it comes to flowering. Hope this helps... Organoman.