Generally looks fine, except I would like you to go into Jolly vs. Adamant in the Life Orb set with a little more detail. The use of Jolly nature is generally better for number of things you can outspeed, but that 10% power drop does actually lose you a number of KOs. I'll give you a few damage calcs, which I'd recommend you put into the analysis to highlight the benefits of Jolly vs Adamant:
Adamant Earthquake vs 252/88+ Ferrothorn: 44.60% - 52.84% (Chance to 2HKO after SR and Leftovers, very high chance with one layer of Spikes only)
Jolly Earthquake vs 252/88+ Ferrothorn: 40.91% - 48.01%
Adamant Earthquake vs 252/0 Tyranitar: 106.93% - 126.24%
Jolly Earthquake vs 252/0 Tyranitar: 96.53% - 114.36% (Basically for lead matchups, some people ARE stupid or don't care enough to leave their Tyranitars in, and nothing will frustrate you more than to miss the OHKO on the stupid thing and have it set up free SR on you or something)
Adamant Icicle Crash vs 252/232+ Skarmory: 34.43% - 40.72% (Good chance at 3HKOing Skarmory if you get the 30% flinch chance)
Jolly Icicle Crash vs 252/232+ Skarmory: 31.44% - 37.13%
Adamant Earthquake vs 252/252+ Hippowdon: 35.71% - 42.14%
Adamant Icicle Crash vs 252/252+ Hippowdon: 60.48% - 71.90% (2HKO guaranteed with SR for Earthquake then Icicle Crash)
Jolly Earthquake vs 252/252+ Hippowdon: 32.14% - 38.10%
Jolly Icicle Crash vs 252/252+ Hippowdon: 55.71% - 65.71% (Miss the 2HKO for EQ + Icicle Crash)
Put these in and I'll approve.