The other grower is correct though the light burning is very very slight here and I doubt it would effect growth in a very drastic way though the rusty type spots are something to be concerned about that is a lack of cal mag in your feed and its completley normal if your growing under High Intensity LED lights. The plants tend to eat more cal mag when under the LEDs for some reason. Though I think you should dim your light down abit if you can the very bright red of your leaf stems is telling you the light is very intense for her that is the plants natural defense to intense light is to flood the area thats under the light with pigmentation in order to better deal with the heat of the light and the light itself you can confirm this by just looking in your tent you will see the leaf stems that are in direct contact with the light are the only ones that turn red/purple now ive said it you will probably notice it lol dim the lights feed her bit more veg feed and you should be okay ramp up the light when shes been in flower for longer :) best of luck :) 👊