You describe what you are interested in having done for you? I ask some questions and if I see photos in advance, gives a general price range.
If necessary you supply a photo or I take photographs and estimates a more specific price range with a contract.
After contract is signed and exchanged and earnest money received, I begin the project. From the notes and the photos, I create preliminary sketches.
You meet with me and discuss your options. then I develop the idea. At your discretion two or three progress meetings are prearranged with the meto discuss the progress of the project or emailed images of the progress of the project are sent to the you. At each meeting a fraction of the balance is paid until at the last meeting when the work is delivered at which time the final payment is made.