I don't want to sound like a copy cat but I agree with Chris and Sabrina .
The first image is nice but could do with a small tweak on the composition .
The second works quite well in pulling you into the scene but once there there's no real focal point of interest and may be a deeper DOF would help too .
The third is also suffering from a case of bad composition .
These are just my own preferences but I would be interested in what you think of your own work .
Welcome to the forum
Mark