Hi Rima I saw your page. You uploaded a beautiful picture.
If you have an image editor you could resize it to 120px width (max). Then go to your image's page and select: "Upload a new version", then upload the smaller pic. Or
Keep the original picture, which is great, and upload the new pic with a different name.
I have an image editor, so I can do this for you.
I'll be out Wikieducator for some hours, now its 3:10 in Mexico, I'll be back at 8:00pm.