I could see this if it were Idolmaster or something, where posing for a photo would be totally in character. But for these two, it's hard to picture it.
That said, not sure I'd say it's not intended to depict gay love. It may be that the artist sees a lot of shots like those and just assumed well, that's how it's supposed to go. Their other stuff on Pixiv seems similar.
^you may be right, assuming intentions is usually a bad idea. Still, images of two people focusing on an offscreen third party don't convey the love too well regardless of what the intent was.
Yup, great great anime. They remind me of Izetta-The Last Witch. The main couple had so much affection to each other. Not completely yuri but still, a comfortable watching :)