Yes, in Step 1 of the tour creation process (“Upload & Group”) you can edit all the pictures that you previously uploaded into the tour.
Click on the 3 dots on the picture you want to edit and choose Image Editing
Here, you have the chance to adjust the brightness, contrast, saturation, green level, and warmth of the picture.
Moreover, you can blur certain parts of a picture (for instance license plates, family pictures). For this, simply move your mouse to the area you want to blur. Now press the mouse and move it around the area you want to blur.
If you didn’t like the changes you have made, you can always click “Reset” instead of “Save”. Then, your changes won’t be saved.