Yep, as Michelle said, with experience comes educated guesses, I'd say with most certainty Boa constrictor imperator, most likely a normal colombian boa.
___Colombian Boa constrictor constrictors are usually very rare, and fetch high prices, so wouldn't usually be your run of the mill boa. Bcc's had peaks usually, but usually even if then don't they have some differences, but scale rows are more particular.

boas are fun, happy new years.