base on your work and an other designer we face a problem they love both your logo and her logo !
i need you to mix your work and her work, i try myself to mix to see what could be the solutions to get the best of both logos to make only 1 for the end
please see my idea in the png and i add the logo inside made by the girl.
i think we don't like from her the green we like your green and even love your white version with green on letters.
your mond saint michel and horse are also a solution why not add the ball around as per her design