Hi... I am looking for a cowgirl boot to wear in my brothers wedding. The dresses are a "truffle" color, which is a very dark, dark, brown. I am very interested in these corral boots. I noticed that there are choices between a brown & black color. Could you tell me if the black ones have a lot of brown in too? It's kind of hard to tell from the pictures on the site... It looks like the black ones have both colors (A lot of deep brown coloring) but I'm not quite sure. I kind of like the black ones better so I just want to make sure that there is a darker brown color in them too. Could you also tell me a little about your return policy....If I order the black ones to see if they match the bridesmaid dress, am I able to swap them for the brown ones...If so, how long does the process take? The wedding is in july. One other question.... How do these run size-wise? Do they tend to run on the small side according to others? Thanks... Hope to hear back!