You should take a... Deep Breath

WASN'T DEEP BREATH GREAT!?!?!? To show my appreciation this is my list of good things with gifs beneath each one review:

Deep Breath was a fantastic first episode for the 12th (or rather, 14th) Doctor. It introduced him well, and had all the good features of an episode, including:

Action

Serious character development scenes

References to previous episodes

A cameo of Elizabeth Sladen's husband

A certain other cameo that may or may not have reduced thousand of fans to tears

a big scaaary dinosaw!!! :O

The Doctor and Clara coming second in the 'cutest interspecies relationship of the episode' competition

Vastra and Jenny winning said competition

Angry Clara

Sad Clara

Insane Clara

Brave Clara 

The Doctor rappin'

Strax

And a new story arc...

I have two theories for that

1. She's River Song or someone else in the library database (hence 'heaven' - when you were saved, you would live in a perfect world)
2. She's a regeneration of the Master (this one was just a guess really, she seemed to have a similar personality to him and she has known the doctor for a while - before he regenerated into 12)

If there is anyone who actually reads this blog who has a theory on who Missy/The Gatekeeper of the Nethersphere/The Woman in the Shop is, please leave it in the comments!