hi man, im only a newbie myself, but they look very burnt plants to me. Im groing an indica as well, which is getting very bushy.To me it seems the indica is an easy strain to grow.
You might want to ask around for some nutrients advice. Ive the book by Phillipe Adams, and your pics look like the ones in book with pottasium overdose.But again, im not experienced enough to help you. I wish I could. I'll post you a pic of my indica, it was taken at 6 weeks.