Great! For this photography setting, I recommend using the 50 mm lens as it will allow you to get closer to the rainworm while still providing enough depth of field to keep the background nicely blurred. In terms of camera settings, I suggest shooting in aperture priority mode with an aperture of f/5.6 to ensure a shallow depth of field and make the rainworm stand out in the picture. You can adjust the ISO accordingly to get a proper exposure. To make the picture more interesting, consider changing your perspective. Instead of taking the picture from a standing position, try getting down to the rainworm's level and taking the picture from a low angle. This will give the picture a unique perspective and make the rainworm look larger and more dominant in the frame. Additionally, you can experiment with different angles and compositions, such as using the rule of thirds or playing with leading lines in the environment to guide the viewer's eye towards the rainworm. If you want to explore more advanced techniques and equipment for macro photography, consider investing in a dedicated macro lens or extension tubes, which will allow you to get even closer to the rainworm and capture more intricate details.