Looking over the images of your boots, and trying to be as analytical and dispassionate as possible, I honestly can't see why they could be construed as feminine other than via, as I have said before, the blinkered response that tall boots must be feminine - just because. The slender shafts do not strike me as intrinsically feminine, just decently fitting. I believe we noted in another thread that most tall boots (nearly all of which are found on the distaff side of the shop) have rather large calves/shafts. It could therefore be argued that ones with bigger, looser shafts are feminine by virtue of their numerical superiority.
The toes are pointy and the foot shape elongated, but there again not intrinsically feminine. As they say about pointy toed (masculine) cowboy boots in Texas: "They're for killing cockroaches in the corners." Nor are the heels too tall for cowboy boots. Worn under jeans there is no way on earth anybody would notice them. Worn over jeans, yes, they'd be noticed but only because hardly any guys wear their boots that way (because hardly any guys dare wear tall boots - however much they may like the idea)
I agree with Puffer - that is the only unusual aspect to them: wearing over jeans. But why not? They are nice looking boots.
I recall wearing a pair of very tall 16" L.L. Bean duck boots (mentioned in another thread) when I was in Antarctica. Some of the women on the ship marvelled that I did not wear them over my jeans when we made landings, to show them off. In that particular instance it was wisest not to! Zodiac landings in Antarctica can be quite wet and having trousers over your boot tops is a great idea, if you don't want to get water in your boots. They women on board soon joined me in the male style of wearing boots under trousers!
Outside of that though - I think tall boots look best over jeans. I am not into leggings myself, other than for cycling, but boots and jeans seen a decent look!
I agree too that one regularly sees guys wearing all kinds of (to me) objectionable get-ups - tattoos, piercings, baggy trousers with the crotch down to the knees, ludicrous board shorts, hoodies, and ludicrous hair styles with nobody giving them a second glance. Yet wearing a nice tall pair of boots (regardless of whetheror not they had heels) over jeans would raise eyebrows and call into question your masculinity. What a weird and up-tight world.