Make it free and suitable: Existing broad paper/board and a familiar suitable tool, or an actually willing adult making on accepted child directions. Check ordinary local access/tool suitability. One broad region and an exact description are enough; if only a plan exists, call it a plan.
Own activity: Choose one wanted feature. Keep it alone or make/direct another version with one chosen detail added or absent.
Notice without a score: Notice a supplied include/leave-out decision, not whether another person would understand.
Optional end: Keep one/both/neither; a simple picture is not lower effort. Stop/help/later welcome.
The child can stop, rest, ask for help, change the job, keep it private or pass. No child/body movement, sound, spelling, response length, photograph, private details or school return is required. Adult reading/scribing/operation is named; a plan does not become a made work, and imagined people are not real recipients.