I dug up some of my own travel photos and used the "color picker" in CorelDraw to copy a few of the colors that really "spoke to me" from each. I usually have a palette in mind as I draw my designs, so what I'll do is poke through a bunch of these and see which one is a good fit. Then I'll tweak the colors and play them off of each other. It's a process, folks! It ain't easy at times. But darn, it's a blast.
Oh, and if you want to Pinterest any of my artwork or photography from here, please attach a link to this blog and give me credit. If you don't, I will find you and hurt you ;)