You can go back and edit your original post and remove the image if you want and/or change the subject. You can't remove a post once there's a reply--at least I don't think you can.
Two quick little tips. Typing in all caps is akin to shouting so you may want to unlock caps.
Also at 800 pixels wide, the image is way too large to show on the forum. It's being cut off on the right side. To avoid this as well as speed up people's download time, resize your image so the largest dimension (height or width) is no larger than 660 pixels. This will make it display very nicely and helps with viewing the forum.