Try going back into your first posting, click on Edit Post, a Post photo/s button will have appeared. Add your photos, and the whole posting will be on the Q & A forum. You'll need to add to the text, as much as you can tell readers about the rose: how big is the flower (roughly), are the backs of the petals the same colour as the front, spring only or repeat-flowering, how big is the bush, (or is it a climber), scented?, does it set hips, does it have many prickles, does it sucker, do you have any idea of age, where is it growing. Photos - full face of flower, side-on of bud, side on of stem with prickle/s, leaves, whole bush, hip if any.

Or starting from scratch, as far as I remember the sequence:
Post >question> choose Plant identification from the dropdown list. Then write your question, and click on Continue: you will then be asked for a topic. Choose What is this? from the dropdown list, and click on Continue. Then go back into your posting ( click on Edit Post), and a Post photo/s button will have appeared. Add your photos and the description, and the whole posting will be on the Q & A forum.