Fortunately, my new agent only had a few suggestions for revisions to the manuscript she is going to shop for me. It's been an interesting experience to consider them (they were my call, she said) and then work on the chapters with those specific ideas in mind.
In one chapter, I had written the two segments from two different points of view. It worked okay but she pointed out that both points of view were from minor characters and neither one of them ever got the point of view again in the book. I'd been uncomfortable with this before she said anything but I liked how the POV revealed what I wanted the reader to know about these two characters, one of them a new character who would play a strong supporting role to my detective.
So I went in and read the chapter and reread it and realized that I could take Andrea's suggestion and get my main detective into the scene. I lost a few pieces of information about one of the characters but not enough to be problematic.
I fixed the other two ideas pretty easily (mostly by dropping out sentences that weren't crucial).
Lastly, she wanted a different take on part of the ending but I didn't want to lose the last reveal so we've agreed to leave that as is and see if editors balk.
I sent off my signed contract, so now the ball will get rolling. So excited!