It looks fine.
One of the most important things I learned last year on my first grow was to not over analyze things. If the overall plant looks healthy it's more than likely fine. Last year I got worried over every little thing, purple stripes on the stalk (turns out to be genetic), slow flowering (or what I thought to be slow), fan leaves dying (the original fan leaves yellowed when stretch started), leaf colour, and I'm sure many more things...
Keep 'em green and watered and start to get antsy when something looks WAY out to lunch. It never hurts to ask but just don't stress too much.