Grammar Check and Correction for a Sentence Describing Brain Hemispheres for an 18-Year-Old

Here is your original sentence with a grammar explanation and a corrected version:

Original sentence:
To visualize the difference between the hemispheres (the creative right one and the logical left one), let’s have the right hand holding something related to art and creativity and the left hand can be holding something connected to logic.

Grammar issues and suggestions:

• The phrase "let’s have the right hand holding..." mixes verb forms; typically, "let’s have [someone/something] do [something]" uses the base verb (e.g., "hold") instead of the continuous "holding."
• For parallel structure, both parts of the sentence should follow the same pattern. Either both hands "hold" or both "are holding."
• The phrase "and the left hand can be holding..." introduces uncertainty with "can be," which is unnecessary here. We want a simple, direct description.
• Consider adding an article "the" before "right hand" and "left hand" if referring to specific hands.
• For clarity and smoothness, consider breaking into two clauses connected properly.

Corrected sentence:

To visualize the difference between the hemispheres (the creative right and the logical left), let’s have the right hand hold something related to art and creativity, and the left hand hold something connected to logic.

This version is grammatically correct, clear, and balanced.