I think yours is Eriophora sp. and Eriophora ravilla. I found another one which might be found in Colombia (at least Peru is indicated): Eriophora edax, but I cannot see any orange which is typical for Eriophora and specially Eriophora ravilla, which is probably the most common neotropical Eriophora. Please, verify nevertheless!
http://aces.nmsu.edu/academics/spiders/arid/images/Araneidae%20Eriophora%20edax.jpg
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