The girls in Columbia (Bogata and Cali) are OK but not as good as Rio. They are about on a par with those in Guayaquil, Lima and Caracas.
Word of caution, Columbia is the murder capitol of the world and is in many ways the most dangerous country on the planet. The chance of something happening to you is still small but is probably several orders of magnitude greater than most other places. I helps greatly to have a local that can help to keep you safe. More people in that country are packing than in the South Bronx. Try to blend in with the locals because kidnapping foreigners for ransom is a national pasttime.
There is a place in Bogata called Isa*****'s. Well worth the effort to find it.
Have a nice trip.