You could let her 1 more week even with that sunburn, remember bud is also made up of leaves.
But i think the cristals seem ready enough for what people can a sativa high, its all depended on crystals, if you want it active just hervest now and get to trimming, if you want a more sedative high leave it a couple more weeks on the ground so the cristals can finish developing.
Best of luck growmie.
Hope you can pick my answer eventually, it helps me out a lot in a contest.