Do not worry about the number of comments: it is better to keep them as "history", so we know why it was listed with that info
So in general, do not delete your comments (except if they are just for star-rating)
Custom was rather for cars with a custom-shaped body that do not really fit in the other categories, this one still looks like a normal convertible at first sight
this one is a duplicate shot, same used for the Mazda van behind it, and the excavator is rather unidentifable, bad angle, covered in snow and text doiesn't say anything