Looks good. I just did another last night, but much simpler. I seasoned and smoked at 250 for a little over an hour.
Next step is slicing. I used to slice like you show in the picture. The last couple of times I finally sliced the recommended way, cutting cross grain like a brisket.
It turns out great that way. It pulls apart just like brisket.
There are two cut angles based on where you are on the tri-tip, again like the flat and point of a brisket. It is pretty easy to see.
I first saw the slicing pattern in something I got from Thermoworks.