I think first one evelyn mariah is beautiful
Evie is lovely(my daughters name Evie Lynn after my mums name Lynn :))
Evelyn Dawn would be pretty too! I have a niece named Evelyn and we call her evie for short!
How about compromise and call her Evelyn Dakota? That flows much better that Dawn Dakota :-)
I like Evelyn with Evee as a nickname. It's a classic name and very pretty. I think Dawn Dakota doesn't really flow, maybe Dakota Dawn.
i personally like Evelyn as it was my nans name and we said if we ever had a girl one of our options would be Evelyn or Evie or Eve for short.
I also like Evelyn Rose-Marie (my nans name and my mums called Rosemary and DHs mum was Marie) Just has a nice ring to it :)
I really like Evelyn Mariah, but my husband I think is leaning more towards Dawn Dakota.