I like to see a thumbnail of myself. I have some holiday decor up that would be unsightly to have in view during summertime. I also like to see I'm centered in

I like to see a thumbnail of myself. I have some holiday decor up that would be unsightly to have in view during summertime. I also like to see I'm centered in frame, posture looks good, etc. I want to verify I look presentable through the duration of a call.