I thought my last image, Cruising might make a great vintage postcard. This doesn't copy any real postcard but mimics the appearance of others from the same period. The submarine is Shneider Dmitry Konstantinovich's nicely detailed free model available at Sketchfab. The sailors on deck are M4 in the Universal Sailor uniform. The large ship in the background is the Lorena from Sketchfab and the barely visible small boat is the Steam Sloop. The environment is Poser Ocean and Flinks Sky with wakes from IN Wavecutter and spacebones. The gulls are from Flock Formations. The various elements of the postcard are public domain from Wikimeida Commons. The photo of the tsar was colorized at Hotpot (hotpot.ai/art-generator). "Submarine 'Dolphin'" (https://skfb.ly/oFLnA) by T-FLEX CAD ST (Free) is licensed under Creative Commons Attribution-NonCommercial (http://creativecommons.org/licenses/by-nc/4.0/). Composed and rendered In Poser 11 Pro, post-processed for effects and fading in Photoshop and Corel Photo Paint.