This is a earlier and closer view of the first picture on the storm structure pictures page of this website. You can clearly see the inflow/tail cloud on the middle right edge. The storm's updraft takes up most of the middle center to top of the picture. In the very center of the picture extending just below cloud base you can see a small funnel cloud extending down from the wall cloud. The wall cloud in this picture isnt much more than a slight lowering below the updraft. The black line marks the bottom area of where the wall cloud is located. Notice the slant of the line down to the right. The slant is caused by slightly drier air from the rear flank downdraft and thus higher LCL's (cloud base/lifting condensation levels) than on the right side which is closer to the rain core and is more moist and therefore the LCL's are lower.