you need to delete all the background around yourself then click the dotted box icon but then below all the icons there should be two funny looking pictures with a green cube a red circle and a blue cylinder, click the bottom one. drag over the pic of yourself and move it onto the desired background(in your case the green swirly background) you might have to change all the white on yourself to a different color because the background will show up where the white is..then after you have ur pic where u want it..change all the white back to white....and to get a font on there just click the big "A" icon and drag it over the middle of your signature.. =P thats the best way i can describe it..