I wouldn't be concerned about dated photos, a selection over a period of time should give an indication. You will however have to submit documented evidence of the relationship...including a officially translated copy of the marriage certificate + the original (or a legally certified copy), and proof you've been living together etc.
For the accommodation provided by your family:
If rented, submit a letter from the landlord agreeing to you and your wife living there.
If mortgaged, a copy of the mortgage agreement
If owned outright, a copy of the title deeds.
Bear in mind that your wife will have to meet the English language requirements. If she has a degree taught in English (outside of the UK) she will need a NARIC English Language Assessment (ELA).
If not, she will have to pass an A1 level English test from an UKVI approved test provider.
https://www.gov.uk/government/uploads/s ... entres.pdf
In addition to the visa fee, you will also have to pay the NHS surcharge of £600 online before submitting the application.