Nancy Creek Guesthouse by Philip Babb Architect. While this is not a shipping container home, the lines are similar and so could be used as inspiration for interior layout.
Image 5 of 14 from gallery of Elk Valley Tractor Shed / FIELDWORK Design & Architecture. Photograph by Brian Walker Lee
Image 4 of 26 from gallery of Escobar Renovation / Chen + Suchart Studio. Photograph by Matt Winquist