Well folks, there has been a few Whatsapp messages back and forth with my aunt and a total of four photographs from her, one of my grandmother, two of my great grandmother and one of my great great grandparents. Meantime, I've provided her many of my mother, and several photographs of her great uncles (which I was able to find by trawling google), which was very interesting for her. The only additional information I've learned from her is that my great great grandparents were both vets. I did send a list of questions that I asked, that if she had time, would she be able answer, concerning my mother and GGparents as that would really help me with my research going back further which she said she would do but so far I've not received anything from her.
What's been disappointing for me has been the lack of interest in my mother, their sister - hardly any questions about my mother's life, who she was, what she did, etc. etc. but at the end of the day - she would have been their step-sister so perhaps this is why, And for my aunt, I may be her niece yet I'm still a stranger .. might have been a completely different story if my mother were still alive. It seems their initial interest in this family 'novelty' (aka me) has worn off and it's now just like.. meh.
The main point is that I obtained closure for my mother and I shall simply get back to researching her family history purely as a hobby now. I won't press to meet the family - that was never my intention, nor my suggestion - that came from my aunt, and to be honest, I don't quite see the purpose. I have contacted her again today about the questions and to ask if she has a colour photograph of my grandmother but I'm not expecting a response. I think the communication will just drift off now which is fine, I understand - she's busy with her own life and family.
We all have different experiences and this is mine. Perhaps this is not so unusual though?