The three 1st propositions are near from what we want in term of colours, style of character, clear distinction between the "B" and th rest but we still need to add some creativity.
For example, the proposition #10 is little creative (the "B" going out of the round, the sytle of character digital, the "B" near to the "S" but clearly separated).
We don't want something very extravagant because our clients are generally conventional but we are looking for an innovant and distinctive logo staying near from the original one.
So, let's go and waiting for more propositions !