First grow: outdoor amnesia auto seeds

A lot of rainy days this week, so I decided to keep my plants indoor this week. They still had some decent grow, so I'm more then happy. The Royal Cheese is starting to fall behind quite significantly, it was planted a few days later, but the difference shouldn't be this big, I don't know why that is. I expect the flowering to start at the end of week 5 / the begin of week 6. If you guys have any tips I'd love to hear them! Greeetzz