Yes, it is a passport type photo although this can be taken on your own phone as long as it complies with the requirements e.g. clear background, no shadows etc etc.
You may also find some of the questions a bit baffling and not relevant when applying for a SETV. you still have to upload a doc for these questions though so I have prepared a one page doc saying "Not required for tourist visa" and upload this.
This has always been accepted. Normally processed and visa issued within 5-7 days, sometimes sooner.