What necklace would you wear with this dress? Short or long? I want something with some color.

It is for R's 4 month photos, well 4 1/2 months. We had to reschedule due to rain last weekend, now doing them the end of the month. Since I have more time now, I think I want something different then the one I bought at Target. I bought it cause I didn't have time to go anywhere else nor found anything I liked.

She is wearing this dress and DH is wearing this shirt (it isn't as bright in person).

Would prefer under $50