Okay I've only just starting in on this and I really like what you're doing so far but it has been a bit difficult for me to get into it because of two things.
Firstly, I'm trying to read this on my phone which is in no way your problem and just a bad plan on my part.
Secondly, though, you have a lot of adjectives and descriptive phrases going on, to the point where there are a number of redundancies. Adjectives are great tools but they're best when used a touch sparingly. It keeps taking me out of the story because it's making it a bit difficult to follow the thread of your sentences.
Hopefully this is the kind of feedback you were asking for and it is helpful. I really want to read more when I get to a screen that is less tiny and I hope you keep adding to this fic :)
I would just suggest streamlining your descriptions a bit and looking out for redundancy in both your adjective use and your storytelling in general.
Just as an example of what I mean by all this, a sample edit of paragraphs 6 and 7:
Ginny Weasley was sitting by the pond next to her house like she had always done whenever she felt like being alone. The clear, dazzling water was not warm enough for Ginny to swim in, yet it was just about the perfect temperature to dip her toes. With the breeze messing her gorgeous red hair and the sunlight glimmering in her deep chocolate eyes, the scene would be stunning to any passers-by.
Ginny, however, didn’t feel beautiful at all. In actuality, she felt like the most pathetic person on earth at that moment. While all the current people inside and outside of the Burrow were enjoying this cool and breezy Sunday afternoon, Ginny felt like curling up in a deep hole and never coming out. She was grasping the moist grass in her fists while blinking away the tears of anger and sorrow that she had kept stored in her for quite some time. In that moment, she considered herself a big, fat mess of feelings. So she let down the walls that she had built up so long ago, and she let all the pain she was feeling pour out of her.

Anyway those are my two cents but feel free to disregard! So glad you're writing and posting this for all of us! Keep up the good work :)

I must admit that this isn't one of my favourite constellations. However, since the story is supposed to be a romance and you haven't selected neither Angst nor Drama as a category, I just hope that it won't take Harry too long to realize that Amber is not the right girl for him.
I'm looking forward to reading how Ginny will cope with this situation.

At this point in the story I am not sure if It is Ginny;s fault that she has lost Harry. How deep is the Harry/Amber relationship and why did Ginny not try harder to foster an emotional relationship after the battle? Wait and see, but I am not taking bets where this finishes up. Some nice, descriptive writing here.