Sure, people I like have good photos, there’s my husband’s page and my relatives’ ones, others I don’t care or some I don’t like, but it doesn’t matter unless I have to talk to them constantly, then seeing the icon over and over would be affecting.
If you yourself doesn’t like what you have, you always can fix it, if you think something is better, think why is that and which photo would make you feel proud. Same with username.