I think freebies save time on the person time as they do an image . There nothing wrong with it . Just try to give the person credit who made the modell. Put your name on a read me file in the zip so people can remember who it is. Now if you change the textures on the modell so it will fit your image better; that is even better. I mean if you look at it; "why reinvent the wheel when you have one" It a freebie that someone took the time to make and out of the person kind heart give it to you.

what you see is not what you know; it in your face