Test IF file exist, ELSE xcopy these two files

Morning all.

So I've been up hours trying to cobble together -a variety of replies to other posts- into my own code in order to see if I could get something usable. No-go. I'm sufficiently lost in the sauce that I've now got to ask for some help from you.

Background: OS: Windows 10 I use the program text2folders.exe to create 20-30 new folders on a secondary drive every night. Primarily, I have a base file "aGallery-dl.bat" that I populate each folder with using an xcopy batch file. Secondarily, from time to time I update the source file "aGallery-dl.bat" using the same xcopy and this overwrites the older target file, populating all folders with the newest "aGallery-dl.bat" (whether they need it or not). All is well.

@echo off
for /D %%a in ("U:\11Web\gallery-dl\deviantart\*.*") do xcopy /y /d ".\aGallery-dl.bat" "%%a\"

I've recently decided I want to add two new files to each folder and have expanded my xcopy to include these. All is well.

@echo off
for /D %%a in ("U:\11Web\gallery-dl\deviantart\*.*") do xcopy /y /d ".\aGallery-dl.bat" "%%a\"
for /D %%a in ("U:\11Web\gallery-dl\deviantart\*.*") do xcopy ".\Folder.jpg" "%%a\"
for /D %%a in ("U:\11Web\gallery-dl\deviantart\*.*") do xcopy ".\Folder2.jpg" "%%a\"

Folder.jpg a big red X

Folder2.jpg a big yellow ! mark

When I choose to run a "aGallery-dl.bat" in a given folder (again, one of 100's), it first deletes Folder.jpg then renames Folder2.jpg to Folder.jpg. This has the effect of the red X being replaced by the yellow ! when viewing the folder in File Explorer parent folder. Secondly, it calls "gallery-dl.exe." I use going from red to yellow to let me know I've run "aGallery-dl.bat" at least once. All is well.

rem @echo off
del .\Folder.jpg
ren .\Folder2.jpg Folder.jpg
FOR /F %%i IN ('cd') DO set FOLDER=%%~nxi
"C:\Program Files (x86)\gallery-dl\gallery-dl.exe" -d "U:\11Web\gallery-dl" --download-archive ".\aGDB.sqlite3" "https://www.deviantart.com/"%FOLDER%"/gallery/all"
del .\Folder.jpg

If "aGallery-dl.bat" completes successfully, it finally deletes the Folder.jpg (currently yellow !), and now the representative contents of the folder (usually DeviantArt .jpg's) are visible.

Problem: When I have to re-run my original xcopy command to update "aGallery-dl.bat" in ALL FOLDERS, the Folder.jpg and Folder2.jpg will be re-copied to all folders, defeating the purpose of deleting them once via "aGallery-dl.bat." I don't want to have to go back and re-run "aGallery-dl.bat" 100's of times intermittently across a number of folders, just to get rid of them again. I need some type of test, that if "aGallery-dl.bat" is already present in the target folder, DO NOT xcopy Folder.jpg and Folder2.jpg aka vague example, below.

*********************************Some sort of test statement here!!!***********************

:aGallery-dlPresent
GOTO eof

:aGallery-dlNotPresent
for /D %%a in ("U:\11Web\gallery-dl\deviantart\*.*") do xcopy /s /y /d ".\Folder.jpg" "%%a\"
for /D %%a in ("U:\11Web\gallery-dl\deviantart\*.*") do xcopy /s /y /d ".\Folder2.jpg" "%%a\"
GOTO eof

:eof

I had found a hopeful candidate test statement in the below (copied in its original form from what/where I read in other post), but am looking for ideas/replacements as I HAVE NO IDEA how to modify/inject/implement the below to work in the above.

If exist \\%DIR%\%Folder%\123456789.wav xcopy \\%DIR%\%Folder%\123456789.wav D:\%New Folder%\ /y

Having XCopy copy a file and not overwrite the previous one if it exists (without prompting)

Moving this to the end of the xcopy command (after the above, rather than before) allows "aGallery-dl.bat" to be updated in all folders without mucking up the above command.

for /D %%a in ("U:\11Web\gallery-dl\deviantart\*.*") do xcopy /y /d ".\aGallery-dl.bat" "%%a\"