Dress dilemma?

I’m attending a formal event which is required to have an outfit suited for this occasion; something such as a plain dress, skirt, or dress pants. I had used an internet photo as my reference for my idea dress. Although I wasn’t able to find a dress like the the original one I had wanted, I’d found a alternative.

The one I bought

Give me you’re opinion on both dresses and what you personally think of the purchased one :)

Note: I’m rather tall with a average/slim figure.