Love it. Always a sucker for the dream connection stuff so kudos for that and the wonderful image of running through the woods A+ for that.
Read the story now
I feel like your characters are strong in the sens that you can believe they are real people you'd know, even though we hardly have any time with them. The plot is also very compelling and I'm curious where this will end up. Also enjoy the chemistry between Nina and Malcolm and the brother-sister relationship he has with Nina's sister. I always love it when a writer remembers that the main character has a family and have (what I'm assuming is a main love interest) interact with them.
Now some criticism, sorry.
You do the exact thing I use to do with dialogue, you write their dialogue the way it would be correct in; say a letter. However, you should remember that not everyone says things like, "Oh really? I am not even dressed properly!"
It sounds a little robotic because not a lot of people say "I am." in a sentence like that, instead they'd contract the two words and say "I'm". Also verbal ticks or patterns that only one character uses can help differentiate two characters when they're talking. This is just a suggestion and something I love doing just so I can have snappy dialogue between two characters. An example is I have a two characters and you know when character A is speaking because she contracts words a lot or misses out t's at the end of words. Character B says his t's and pronounces things properly, This can be a nice way to show character personality's as well.
Overall this was very enjoyable and I look forward to reading more.