... intent CAN be difficult to prove ... most especially if a couple marry within a short time of meeting one another. But, while by definition, LDRs are not always easy to sustain, the fact that you've made the effort of getting to know your partner, through travelling all the way to her homeland and supplying the evidence you've mentioned - presumably with lots photographs of the pair of you together - is likely to work in your favour.

Bear in mind too, that an ECO will, in every case, need to come up with good, strong reason(s) to justify separating a husband and wife.

... that's about IT, basically. Good luck!