Understanding Theme/Template Overrides

I've reviewed the tutorial on template overriding and would like some clarification.

I recently made modifications to the core files for:
Origami: components\com_easyblog\themes\origami\blogs\latest\default.main.php
Wireframe: components\com_easyblog\themes\wireframe\blogs\latest\default.main.php

My expectation (based on template overrides in other components) would be to create my template override folder in the component theme directory like: components\com_easyblog\themes\customtheme. But, based on the tutorial, it looks like it should actually be in my core Joomla templates folder: mydomain\templates\customtheme

Further, on the tutorial it's a bit hard to discern the appropriate placement for the override files. In the example given it appears the correct location would be:

Origami: mydomain\templates\customtheme\html\com_easyblog\themes\origami\blogs\latest\default.main.php
Wireframe: mydomain\templates\customtheme\html\com_easyblog\themes\wireframe\blogs\latest\default.main.php

Can you confirm for me where the correct placement should be for these overrides?