What occasion dress should I keep? Neither or both is an option

I never wear these (well, I both wore them once) in the years I’ve owned them. I wanted to sell them both, but trying them on again made me realize I don’t hate them.

Reasons to let go of green
- I never wear cleavage, I’m scared I’ll just feel uncomfortable wearing this dress

Reasons to keep green
- I’ve seen pictures of others wearing a similar style and I always love it, it never seems too revealing on others so I’m sure it looks fine on me too. I’m just not used to it)

Reasons to let go of orange
- the fabric is a nightmare, you can see everything shining through. It’s thick, but shows structure (even pasties or a stick on bra)
- as a winter, I don’t know if it’s my colour

Reasons to keep orange
- it was expensive
- the back!!

Thoughts?