Recipe: Trouble in the Jungle (new)

Something I came up with while fooling around.

2 ounces 151 rum (I used Bacardi)
2 ounces orange juice
1 ounce grapefruit juice
1 ounce orgeat
a few dashes of bitters (I used Angostura)

Shake and strain into a glass full of ice. Garnish as desired and serve with a straw.

As always, comments, advice, and angry complaints are greatly appreciated. :)