Welcome to the wiki! With you being a new user and all, I thought you needed the official welcome from the welcoming committee (me) ;)
Ah, now that that's over with, I have a few small remarks for you to remember in the future when you edit:
If you feel an article is missing a picture you really think it needs, don't hesitate to upload it. However, you should remember to make images with really good quality, especially because we have had a few frequent contributors uploading really good pictures here lately (Jspoelstra and GhostAvatar).
Specifically, it wasn't necessary to upload this image you added to the bottom of Christine Royce's article because the existing image is much larger and of higher quality.
Please, don't take this the wrong way; I am trying to help you learn more about what makes an experienced editor on the wiki. I have no doubt that after a few months of learning the ropes, you will be a well-known user and editor.
Thanks for listening, and see you around the wiki,