Should I be concerned about this offer?

So A guy approached me on Instagram who had a wedding photography business and said that he would like to do a photoshoot with me sometime and asked if I wanted to book one in with him. He said he would give me the photos at the end for free and that he might use some for his website and Instagram page to advertise. He also gave me the names of three models he’s worked with to ask for references. I messaged all three models on Instagram and they told me he was professional and did the photos for free too. They also told me that he does boudoir photography mostly and he told me that we would first shoot the photos at his house and then go outdoors. He said if I wanted to I could do lingerie or swimwear photos too

Is this dodgy and should I be concerned about this?
Should I be concerned about this offer?
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