Seems like a normal thought for most crossdressers...
Most definitely... These thoughts never go away. I'm always looking at women and studying their looks, and I never grow tired of it.
It might be related to my own age, but I have actually found that my attraction has widened quite a bit since I started dressing. I can find attractiveness in a much wider range of women than I did just 10 or so years ago. And I don't just mean their age. I mean their size too. What I may have thought was too heavy in the past, I can now easily look right past and find something else to admire about them. So much so, that I have actually shifted my attraction towards bigger sized women. I think this has to do with accepting my own size when dressed, finding things about my own appearance that I like has taught me that there are always things about women, of any size, that can be attractive and stylish. I mean, don't get me wrong, there are still upper limits of what I find attractive when it comes to size, but I'm pretty sure that I can find attractiveness in many women that most of my friends would not find attractive at all.