The bounding box should disappear when clicking the green checkmark e.g. when transforming, scaling, re-sizing etc. If the move tool is selected try switching to another tool e.g. click on the hand tool.
Are you using a layer mask? For example I used the lasso tool to outline the head of the guy on the far left and then pressed Ctrl+J to copy the selection to a new layer. I then dragged with the move tool to position it over the guy in the center – click image below.
Holding down the alt key and clicking to add a layer mask blocks out everything with a black mask. Selecting the brush tool and with the foreground color set to white, I simply brushed over the head to reveal just the face and hat ignoring the outline of the original selection.
You could use the same method for each layer.
Thank you for the taking the time to reply. I'm probably making a total rookie mistake as it's my first time. I tried your suggestion but it didn't work. I still see the bounding box outlines in my background.
You have invested a lot of time on this and it can be salvaged. Fortunately most of the background distractions are linear, and this facilitates correction.
Since you are new to this software, note that the brush cursor size can be increased and decreased with the keyboard bracket keys (] & [) next to the letter P. Also, note that when using the brush tool, click on a start point, press SHIFT, and click an end point. This will produce a straight line.
- Open the picture file
- Open a blank layer above this
- Activate the eye dropper tool and sample the black background. This will be your foreground color.
- Working on the blank layer, using the technique delineated above, get rid of the straight lines (you refer to them as "bounding box"). Change the size of the brush cursor as needed. This will require several separate corrections. Some areas are best corrected with gentle free-hand painting with the brush tool.
- In a couple of spots an area of grass has to be corrected. Sample with the eye dropper and correct. Again do the same on a couple of areas over the boys' skin.