Instagram has pixel and ratio limits for profile
insta zoom pictures. If your profile picture exceeds these limits, it doesn't fit. In order to increase the size of your profile picture, you need to make sure it doesn't exceed these limits. If you are unsure of the pixel resolution, you can use a third party app. Finally, it is possible to add filters and a brand logo to your image.
In addition to your profile page, your Instagram profile picture appears in a number of other places, including story feeds, comments, and search results. You need to choose a profile picture that looks great in all of these places. If your profile picture is too small or too big, your followers might not recognize you.