There are plenty of other possibilities, and I don’t think bipolar is actually the most likely. Although psychosis and delusions can definitely be a part of bipolar type I they don’t have to be, and are more commonly associated with, for example, schizophrenia or schizophreniform disorder or schizotypal personality. Of course these are often comorbid, complicating things. But I wouldn’t jump so quickly to such a specific diagnosis based on one picture.