My favorite subject to take pictures of are skylines of various cities. Unfortunately it seems like they aren't a big seller in stock photography. Are there certain tips that would increase there sales? I would greatly appreciate if you would look at my portfolio and give me specific details.
If in doubt, always look for bestselling photos here on the topic of your liking.
I looked at your photos. I am not a skyline expert, but it looks like you are shooting at the wrong time of the day. The most spectacular city shots I've seen are all made in the dusk, when the sky is dark blue, in comparable brightness to city lights . This time is fairly short - probably 15 minutes or so, so you should be well prepared for the shot in advance.
Hi Sam, the tip on the twilight is good, it lasts for about one hour after sunset and the best images are after the lights turn on. Another tip is to use an ND filter to darken the sky, or take multiple exposures merging them later, some of your skies are too light as compared to the foreground. Skylines are not poor sellers, if you make a search you will find images with more than 200 downloads!
As correctly mentioned you need to get those best selling images after sunset of before sunrise. The lights are what makes the city. If you are taking photos in the golden hour use an ND filter to balance out. Using an ND filter will not only balance out the sky and foreground but make sure you retain detail in both sky and foreground/ground.
A soft grad ND is usually best. If you are going to be shooting during the day and there is no other way try using a CPL to eliminate glare of the buildings and glass. The CPL will also give you better colours.
This discussion thread made me interested in this kind of photography, and my first experiment at "blue hour cityscape" photography was just accepted by DT. What do you think? Many people think it is HDR, but it is not - it is just a single shot, f/5.6, 20s exposure, shot ~30 minutes after sunset, with careful adjustment of white balance, black levels, contrast, and saturation in PP.