Typhlosion needs Eruption, preferably instead of Flame Burst.
Umbreon is best used as a bulky set, having all those attacks on it seems unneccesary. Something like this: Wish/Toxic/Heal Bell/Fopul Play.
If you use Tyranitar, use Sand Stream, and physical sets are almost better in any way. You could go for a Dragon Dance Set with Crunch, Earthquake and Rock Slide/Stone Edge or an Assault Vest set with Crunch, Ice Punch, Rock Slide and/Stone Edge and Dragon Tail. At least don't use Adamant nature on a special attacker.
Dragonite seems fine, but always use Multiscale. Other than that, maybe add roost to heal?
Torterra doesn't need four attacks, especially if it's not an Assault Vest set, and Giga Drain and Energy Ball basically overlap. Maybe change the set to Leech Seed/Giga Drain/Earthquake/Rock Slide?
Give Kingdra a Scope Lens instead of Leftovers, and replace either Surf or Scald with something like Focus Energy or Agility, because having both is obsolete.
Your team looks solid (even though it's slightly weak to ice), but the individual sets need a lot of work. Good luck!