This was a pretty cool story. The giant tree planet was nifty (even more so when it went evil). Reeve captured the Fourth Doctor's personality really well, though I would have preferred Sarah Jane to Leela, most definitely. I get that Leela holds a special place in Reeve's heart, as she was his first companion, but Sarah Jane is the more iconic role (and if this is a celebration of Doctor Who, I'd think you'd go with iconic.) Anyway, I guess Leela was okay.