My first attempt at Milky Way

Any suggestions to improve my photography, is welcomed.

I know I left the shutter open for a little longer than i should, but it was my first time trying.

Yes, timed a little on the long side, but looks stunning to me! Well done!

It looks decent. With that Lens and camera, I would bump up the ISO a bit more (2000+), shoot at F2.8, leave the shutter open for 25 to 30 seconds. You'll probably just start to get the starts moving around 30 seconds in my experience. I would kill the foreground light hitting the tree, or at least turn it way down. It's overpowering the rest of the stuff in the image. The rest is down to processing. It looks to me a little heavy handed on the contrast or sharpening, as a lot of the more subtle detail is gone. That's a matter of taste though. Great first attempt!

It's a heck of a first shot, for sure. I don't mind the light, but watch your shadows when shooting like this; you've got you or some other object throwing a lighter shadow up the side of the tree, interrupting the lighting on it.

If you're new to stars then I'd say skip the foreground for a while and master the stars.
In this shot you have the foreground blocking some of the best of what the MW has to offer.

I'm not sure if you left the shutter open too long or its more of a focus issue. You didn't post the length of the exposure but I'm sure about 60% of what is perceived as blur from movement is actually from them not being in focus. If that's a single shot and not a composite of the foreground and background then you are 100% out of focus because your foreground is sharp.

Use live view, find a bright star and zoom in to 10x in live view. Turn auto focus off and manually focus on that bright star.

If you're going to start using a foreground then I recommend composites. Focus on the stars and take your shot, then adjust the focus for your foreground. Layer the shots in PS and do come creative masking. Light painting a foreground along with the Milky Way is often overdone. It doesn't take a strong light at all. I also recommend using a warming gel on your light to better match the white balance. I usually end up doing a longer exposure of my foreground and then pull out the details I need in PS. For my foreground I will turn on long exposure noise reduction in the camera so it minimizes hot pixels and what not. With long exposure NR on the camera will take a second shot of equal length with the shutter closed so it can record noise and hot pixels. If you take a 2 minute exposure it will be 4 minutes until you can use your camera again.

Then refine your post processing technique, sharpening and noise reductions. Your 5D4 is a very capable camera and you can pull some pretty good detail out of a single shot, like what I've attached. Yes, my shutter was open too long. This was from a set where I was testing my new 5D4 and 35mm 1.4L to get the feel for it and I ended up editing the wrong photo and I'm feeling too lazy to go back and do another.

Beautiful shot

I did't light the tree. It was the light from the camp ground.

Thank you all for your advice.

This was the original show before cropping.

I think I actually like the original crop a bit more, but that's a matter of taste. It looks from the original like there is some subtle detail in the milky way that was lost in the cropped one? Maybe down to how you processed it?

Yes I did play with it more after cropping. Looking at it again, I also like the original better.