the simple answer to your dilemma is, I would say, keeper.
Its good to get a completely processed negative, my success rate is a lot less than 100%.
The lighting on the petals is particularly appealing, and there does appear to be fine detail in there. I do find myself wanting to see more of the flower head though, rather than the stem, though I presume you wouldn’t be interested in cropping it. Perhaps printing large would help- What size will the print be? How will it be printed?
The Polaroid 55 is a super film, and i do like the image, there is a lot of background but its one of those images that grows on you, the flower was a bit mean to you in only opening so little. I am sure it will make a good print. I think a small print will work well and i’m sure lith will work a treat, and add another dimension to the image. What paper will you use for the lith.