new 3/4 bath DWV.

We are putting in a new 3/4 bath on the first floor. I just want to make sure what I plan is ok and if you all might have a better or simpler way to do it. Do both the vanity and the shower need separate vents given the very short distance between them? I have 1.5" for the vanity, 2" for the shower until the toilet at which point it becomes 3".
Anything I'm missing?
It's a small room 6'x5'
below is the fixture layout:

Here is the planned DWV:

Thanks for the great site!
Quinn

dwv

One riser at, or near, the lavatory with the shower armed over to it and the lavatory connected with a tee at the proper height.

Is this what you mean?

Here's a new picture:

Is that what you meant?
Thanks, Quinn