Hi! Love the composition of your sketch. The advice that I can give is to worh more on the shades tone. In your drawing the shade on uour bridge has the same dark tone at the beginning and at the end and it messes with conveying the depth of space in the drawing. You can try to make it less dark at the end (the further away the object is, the less contrast it has) or delete it at all.
Hope it will be helpful! Good luck!