Respuesta :
If you’re talking about creating the app itself on paper and designing the layout n stuff then throw in some special filters, or camera options. However if you’re talking about making an actual app like on the app store it out of my department.
for starters just try brainstorming. Since drawing and photography are in the art category maybe like a editing app where you can show your art you made and captured! then design what you want the app to look like and what to name it and the colors!