Light.
With out a great quantity the eyes make the most use of it they can.
Around twenty minutes away from brite or distracting sources a well lit night would allow,with moonlight not being shadowed on the work,no torch or other source of light needed outside to still view a canvas to work..
Time of year and night if worked at night would need to be duplicated by a torch,wick, or lamp or be held just right to focus/light features?
Time of future use unless very patient; makes portable unnatural lighting easier.
Attention drawn to artificial light may risk being discovered. I
f it mattered might make it a day job.
Less important if peaceful times,organised projects, or innocent goins ons.
Does the site have a guestbook /cache jar or can with visitor dated notes in it yet?
With out a great quantity the eyes make the most use of it they can.
Around twenty minutes away from brite or distracting sources a well lit night would allow,with moonlight not being shadowed on the work,no torch or other source of light needed outside to still view a canvas to work..
Time of year and night if worked at night would need to be duplicated by a torch,wick, or lamp or be held just right to focus/light features?
Time of future use unless very patient; makes portable unnatural lighting easier.
Attention drawn to artificial light may risk being discovered. I
f it mattered might make it a day job.
Less important if peaceful times,organised projects, or innocent goins ons.
Does the site have a guestbook /cache jar or can with visitor dated notes in it yet?