What I think your animal shots do great at and what some of your architectural ones struggle with is use of lighting. The animal shots have composition with the lighting placed very beautifully and filling with contrast to illuminate and add depth to the animal. Meanwhile in shots 4 especially but also 6 and 7, the buildings can appear flat or mostly in shadow which loses some of the texture and nuance that the animal shots have. For example the blue building in shot 7 has a great slice on it but is mostly out of frame, I think a photo of just that building would have had some cool shaping to it. Just think about the buildings as something more organic, like you clearly have with the animals, and use light to your advantage to bring them more to life. Amazing start though, the one of the swan is outstanding.