For most people, it has been very hard to make an IG theme to match their lifestyle. My IG lifestyle can vary from light to dark to colors. However, the most popular one would be a color palette of Stardust. Using pictures of light textures definitely helps create a searchable account. Using the images below will help create the theme you seek. You can merge the images to add the sparkle in the background on photoshop or on the OVER app.
Final product has an overlay of both images can easily be done with the proper resources.
If you want a tutorial of how I make these images, please do not hesitate to send an email to firstname.lastname@example.org