Five photos is about 2 to many to get a good response for C&C.
#1 The background doesn't work with the subject, the horizon is tilted and the composition is poor because the bike is leaving the right side of the frame. If you're going to take a picture with the bike being the main subject, eliminate as many background distractions as possbile and fill the frame with the bike.
#2 background issue (concrete pillar), good framing but the front wheel is toclose to the bottom of the frame, needed fill light, camera left. Off camera flash would have worked well coming from low, camera left.
#3 background issues, needs fill light again on the camera left side of the bike.
#4 background issues, composition issues.
#5 foreground/background issues, poor lighting and composition.