You will want to check out the TRAIN & RAILROAD section to answer any questions like that.
By all means, please post photos of your work so that others can see what you do easier. You can post photos directly from your computer to the thread without the need of a photo hosting site.
Once again, welcome aboard. I hope that you enjoy yourself here. I look forward to seeing your work.
As far as printing, you need to be more specific. I use the program XNViewMP which allows you to resize your pictures and removes all the metadata, so the same picture is actually smaller in size.I've used this program for over 10 years.