I don't have a success from him to share but I've seen many successes that see him alternate between the 2 very different autographs you mention. You could send again and get the other one! That's a great photo though and I'm certain it's authentic.

Like I've already written today I got an autograph from Didier Drogba through the chelsea address.
Question now is: has anybody ever gotten an autograph from him ip that looks like that?
I actually believe it's authentic, as i've seen an officially signed shoe with exactly the same signature. Anyway I think it's strange that he has two completely different signatures... Has anybody made any personal experience with his autograph?

Photo:
https://www.facebook.com/leonsautographs/photos/a.258406664306863.1073741829.258402204307309/411729658974562/?type=1&theater