Rate This Team - PLEASE!!!

[PKM Master]

Hello everyone I'm new here. I've been player pokemon since the yellow version but I'm not really a mast because I need help. Can you rate my team to see if I've got the balance like sweeper, tank etc and the movest right? This is pokemon Ruby and all of the Pokemon are Level 100.

Note I have 2 Slakings

Slaking @ Leftovers Slaking @ Leftovers
Nature - Hardy Nature - Bold
Hyper Beam Hyper Beam
Earthquake Shadow Ball
Ice Beam Brick Break
Slack Off Slack Off

Metagross @ Leftovers
Nature - Calm
Earthquake
Meteor Mash
Psychich
Light Screen

Salamence @ Leftovers
Nature - Hardy
Double Edge
Earthquake
Flamethrower
Dragon Claw

Milotic @ Leftovers
Nature - Modest
Hydro Pump
Surf
Ice Beam
Recover

Tyranitar @ Leftovers
Nature - Timid
Hyper Beam
Earthquake
Crunch
Rock Slide

Venusaur
Nature - Gentle
Frenzy Plant
Solar Beam
Body Slam
Sunny Day

If any team shuffles are suggested the other non legendary L100 pokemon I have are Charizard, Blastoise, Arcanine, Snorlax, Ampharos, Misdreavus, Ursaring, Houndoom, Sceptile, Blaziken, Swampert and Ludicolo. Please tell me if I have the team balance and movesets right or wrong, and if I should swap around any Pokemon.