I am more worried that you will find temptation rather than her. Each woman is different but I think for a lot of women there can be a bit of 'if you don't use it you lose it' when it comes to one's libido. I know that I am an all or nothing sort of lady. Also, although I have not quite reached the menopause stage yet I have read that for some women evrything can tighten up down there and make intercourse quite uncomfortable - that gets worse the longer it is left - she may be quite apprehensive as to what ML is going to be like for her. She may think if she doesn't appear to get aroused, (ie her body doesn't produce the appropriate lubrication etc) you will think she is not interested.
Take some of those photo's with you while you travel to remind yourself of the hottie you have at home.
Have you tried writing to her telling her how beautiful she is and how much you love her. That for you no-one holds a candle to her. Why not explain to her how hard you find not being intimate with her but that you are willing to wait until she is ready and that she is the only woman you want to photograph like that and you hope to take many more photos of her like that for years to come. It sounds to me like she needs a big confidence boost to make her feel all woman and desirable - and you are just the guy to do that.
Saffie
Saffie me 46 H 46 M in 1986 D20,D18,S16,D13 H's A 01/05 to 07/06 H recommitted to M 07/06 renewed vows 09/06 Going from strength to strength
