I created hearts of different sizes and painted them with metallic gold paint.To attach the hearts to the gold wire I used clear string. To attach the different levels of gold wire I used white thread.
Material: Gold wire, clear string, white thread.
Your mobile is looking good. Please show a picture of the bottom arc connected to its arc with smaller shapes above. It’s hard to see in this rotated view.
Thank you for reposting your mobile. The connections show up better in these images.