Clarification on use of standard license photo for print on demand posters

Team,

I have a yearly subscription to adobe stock. I am planning to use some of the photos to create poster design for my print on demand store.

• I will not be using the photo as is. They will be part of a poster my team will be creating
• The background color, effects will be changed in most posters
• Most poster will include a "quote" or some text.  The illustration or part of illustrations will be added to the poster to create additional impact. For e.g. "elephant illustration" will be included in a "be strong" poster. 
• I will be using a print on demand store to sell these posters

Question: I want to check, if it is allowed to use illustrations in my poster for a print on demand store

Question: Is standard license enough for a print on demand type store

Note

I consider the posters to be completely different from original. As we are adding quotes, making background effect and color changes. The eventual poster will be different from the intent of the original art. But it can be subjective. Wanted to check, before using

Including @MatHayward as he has responded to similar queries in the past