hi there !!!
For the last, 10 rating maybe we could try a burning heart instead of flame inside the heart ? like flames surrounding the heart, they can be put inside too but not on the centre, perhaps coming out of the bottom edges.
Plus can you provide me your app icon design, and other existing icon designs, if any. It just would be nice to try something from them for consistency .
I would provide you the AI files and PNGs in 3 different sizes as mentioned in one of the link. It would take me 2 days time at maximum to complete this job. Total price $35, and as you prefer full payment only at the project completion.
Feel free to message me anytime. I am always lurking around here ;)
Regards
Shiva