nested shortcodes from different plugins. too complex? [duplicate]

Shortcodes are not a programing language, and anything that looks like something a non technical person will not be able to maintain, should never be created/used.

Create one shortcode that does what you need. Since in any case a programmer will be needed to manipulate what you are showing in the question, it can be as well written in PHP and avoid the possibility of it changing without the authors ability to repair by mistake.