Welcome back, Raymond!
I get the feeling you posted this to wet our appetite...I want to see all 3999 images in your folders

I do not have one tiger image, really do not wish to see or photograph them in captivity, so for now I dream on and savour whatever BPN Wildlife has to offer...thank you for sharing!
Raymond, to get back to your image (and stop dreaming), my thoughts are as follows, likes and dislikes as well as questions:
I do like the elusiveness of the tiger here and the "stalking" pose, very much.
I would like to understand your decisions in terms of ISO and F-stop. 1/4000s not necessary IMO, a result of your choices at the time and I realise it was not an easy situation, given the amount of grass and considering the lighting conditions. I would like to know more about your thinking/planning at the time you shot this, I guess the other members might find this a good exercise as well. My take is, you were trying to get as close as possible to the subject, therefore the full use of zoom ( 400mm). F4 blurred the FG for you (maybe a bit too much?). Do you perhaps think - in retrospect - that a higher aperture would have resulted in an image where the face of the tiger was surrounded not by OOF vegetation, but by some nice sharp blades of grass, would this be less distracting or not? I guess I am beginning to understand what you were trying to achieve and very interested to hear your thoughts. I might have tried a few shots at the same aperture, but I like to experiment and I do so especially when not sure of the result, here I would have started with F5 and then gone to F6.3, maybe F7.1 as well, maybe more, given the techs above you could afford this exercise. This is not a critique as such and I am not questioning your skills in the field, seems you've been doing this for longer than I have. I have a similar image of a leopard cub and I am wondering what I could have done to achieve better results, never posted it because I was not entirely happy with it.
In terms of PP work I feel you could make the leopard "pop" a bit more... yet not sure you wanted to... if your desire was to portray him as dark and lurking in the shadows I will understand.
Thank you Raymond for sharing this image with us, it certainly made me think about a lot of "things" and I would love to hear what the other members have to say, e.g. what they would do in a situation like this, how they would cope with shadows, wind, tall vegetation, as well as suggestions in terms of processing. Looking forward to more from this trip,
Kind regards,