My Very First Pixel Art

Hello! As stated in the title, this is my first pixel art work. I don't know if this work is good or not, but I'm content to do it as an exercise.

First, I made an error in the pixel count with the difficulty of the image I was going to pixelate.

As a beginner, I should have chosen a simple image. However, I instead chose a complex image like the one above. Do you know? The details on the bridge gave me a hard time!

Thank you for viewing my work! feel free to give me feedback!