There is no such tree as a “cherry blossom”. This is a tropical species most likely Surinam Cherry (Eugenia uniflora). It is NOT a deciduous cherry tree. Eugenia is a common mass produced bonsai subject. It is not winter hardy. Eugenia are not all that easy to keep as bonsai
It might also be a Barbados Cherry (Malpighia) another tropical species with red fruit. Also not easy as bonsai
And a pet peeve —

cherry trees are not “cherry blossom treees”. I see that a lot. Cherry trees are cherry trees.