Everybody is of course free to interpret the work in his own way. I think seeing a picture is one thing and interpreting it is another.
When we believe or say we have been offended, we usually mean we feel insulted, mistreated, snubbed, or disrespected. And certainly clumsy, embarrassing, unprincipled, and mean-spirited things do occur in our interactions with other people that would allow us to take offense. However, it ultimately is impossible for another person to offend you or to offend me. Indeed, believing that another person offended us is fundamentally false. To be offended is a choice we make; it is not a condition inflicted or imposed upon us by someone or something else.