Way too much coke. The coke - and it must be coke, not pepsi - should just be for colour; not a top up - it's only meant to be brown, like tea.
If you need to top up, top up with equal parts of all the alcohol and just a splash more of coke. And the barmix/sweet-sour mix should be 1.5 parts.
So; 1p Vodka, Tequila, Gin, Triple Sec, Rum. 1.5p Barmix. Splash of coke.
In a collins glass, garnish with mint or lime.