Identification: Ficus retusa or carmona or...

I was asked to identify this little tree by a person who received it as a "bonsai". As the pictures are not very good, I am not sure what it is. I suspect it is a Ficus retusa, or Carmona microphylla but it might be some other species. Can U help? Thx.
Marius from Romania

 

Ficus don't produce this little white flower.

Could be a Carmona.

 

I think you are right. Thank you so much.
Marius