a tad unclear on what exactly youre asking but a handy guide to getting images based on profile or asset thumbnails with URLs:
they will all start with https://www.roblox.com/
and are followed by either headshot-thumbnail, asset-thumbnail, bust-thumbnail, or outfit-thumbnail.
then, they will need an Id in the form of image?asset-Id, image?userId, or image?userOutfitId. for example, /image?userId=121529392/
lastly, define the width, height, and format of the image with &width=200&height=200&format=200
so the final product of the above is https://www.roblox.com/bust-thumbnail/image?userId=121529392&width=200&height=200&format=png and displays this image:
