don't know if the below is useful at all, but I think taking the hyphenated names of the photoes and putting them together by making all jpg, png, and jpeg equal and putting them in sequence gives an interesting result that looks like it could be a cyphered string to me.

E4E7A284-C686-406E-89E1-3FF30826F988-6AECCB3F-2186-4C21-9749-064DCA968401-C7248201-F913-4F0C-A667-9BB6457B6477-0704911B-FBA8-4DE7-9C53-93474FE2A4E1-03821C90-07E4-4906-B30D-AB3A4B6182AE-B6C47FD8-1F66-4549-8A4B-26A929B76212-9AB57841-1F3F-4630-889B-4DA55D4A237D-77C6EF7B-C1F0-49A6-BD1E-C437076EEDE4-BA1C5CD5-5C3B-4FE5-93B1-FB20FD72A4A2-25346004-2104-4DBA-9B88-E96D580353D8-C2C6E563-AEEE-46D4-95F9-03866E094C95-29ABE882-37B0-472A-A79E-F287D7C8C11D-9B7BDECB-79FD-4D3C-BE97-A1557507DFD1-540296AD-9205-4253-B4CF-B237CEC6EA85-2C880EB2-FFFC-4E95-B22C-B6F1BF18DBA4-5D00DA74-A956-474C-A7A1-522BC1E1A21A-54950FD4-115E-404E-B1DF-47B149E32097-A783B991-11D9-40D0-BD69-17FF6041E890-3155B65F-063D-445E-A3BD-5461D811E865-8BF7AC13-C658-41A6-A0E3-80BAED6ED3B0-710102CD-50EE-4035-93E4-6755836B436D-E349DAAB-AEE3-45EF-B056-239EFBFA7429-482D19E4-6664-478F-8836-30F2755F5EC0-DEA28E7A-5339-4D0B-A991-AB6E6DF88133-7803B61A-1F3E-47BD-88D4-F3CE15179DB0-7F0F82A1-151F-4868-96EE-054CE9876425-F4929FC0-EA86-4042-82CC-AEE84ABDA9BF-BD670B90-67CC-47F5-8D78-AA5C7FA5B2AE-72E0C7D9-EB8A-49A7-8367-1190ACAD8F9F-4F58B09A-B9F0-4E21-B587-5E11BD9B237F-B1ADF2C9-65EF-42CB-A3D8-8B486CB51EA8-BF865568-AABA-4354-A7C6-18EB2B3C08BE-18454392-100A-4B49-A774-679F9B78981C-784A60C6-B1C0-4DCE-ACE1-A9E68284BD0D-683C2B19-0FF1-4C01-B33B-3C215A046DEF-32AD9484-F41A-4806-AD48-6C98BCC552EF-CBFE279C-FAD2-403C-A11C-E3FC49FC757C-FC8DF5A5-6BB2-4A87-90BF-B4C9E1A3A036-C879615C-3616-402C-B3F6-814E3314AB16-31506F85-476A-4DD6-BDF4-5667E4661A57-13372080-45DC-4E32-B340-34FC892B9D1B-D6C46F7A-C7B1-4A32-9576-E28854C1C1DC-B42CA278-6C32-4618-A856-0CB9B680CC38-763B79E9-EA56-4EBD-A42A-285FF7E4257F-8B01A899-533A-4231-8BAF-6A0B2F5687AB-EA29DD13-F16F-4580-9DC8-0D75F0ACC0C1-25666BD0-F5F9-4A63-AE62-4A14579ABE82-C13A8327-8986-4D5E-AC6B-ECC05F19AE45-89F919D3-5900-4DCA-BA1B-DB69850056B1-CC1B1FD7-8B70-4CEB-A4F7-F5807253D459-72C68DD2-F512-4DC8-ADA8-E27EDC22028C-CAFB8AB7-539E-4AFB-9EC0-E55830B39316-EFABC59D-40D3-4570-81E3-5CC335555028-BC185452-3F1B-493B-98D9-92CA7B865759-AA00D4A7-BF25-44EC-BB62-48819678C8B0-83139841-57B9-47B5-8FA6-D45C0E44F9FC-E78CC59C-D045-42BB-9201-D9BB8BA35699-703C92E0-E064-4400-932F-24EEBCE27949-A3589E21-85D1-4056-9DC7-553651D87D03-0568570F-2EA7-4162-A75F-4E9BF6E7CB37-95DDEF59-7086-4535-985D-5523BE39A9D1-9E1AB60E-071C-4226-ADEC-BFC405E74170-901FFF2C-CFFC-4586-8226-7CDE571EEF72-A2735ADE-C628-42EA-855F-146700A8A886-54BC82F4-E3C2-4ED9-A24D-BD3D395518F4-875F2639-359D-43A8-BB00-1F0760D92AC8-8614095C-F745-4036-8460-19EF8AD06021-41A7C496-2188-4AA3-85AE-806E3FE14E93-57989E34-0050-4758-9F69-40CA170C7070-B939331B-C53A-4497-B9A0-3D8217F16E9B-AA18E55B-4CFD-4974-A479-37C7703ECC1D-BADA0EFE-BCA6-4469-BB48-DA6C23B83AC7-1FBDA20C-D6A7-4A72-8E45-FE084D388834-01F47CBA-ECD6-4413-8769-9AEA0CE17961-7F62F04D-0B3A-4B66-AF51-381CD774E117-DB0379CC-9229-43B5-AD54-F467FD74FD6E-EB072EBC-0DF3-4A2C-BE89-E388996B786D-8466691D-0F75-44F5-AA92-43E5E6D981F9-39E6E8ED-2D45-4AB9-A4EA-6820AA0037B9-B3D12FDF-7189-4836-AD41-F493E801B4FE