Okay...time for some Tips. As I mentioned before, I'm not anyone special as an artist, but I do have pride in my work.
Tip 1:Get along with your writer
Collaborating is a lot like commission work, though you'll work together with your writer far longer than a commissioner. I think it's a good idea to establish a friendship, this way you'll be able to understand where they're coming from and be able to anticipate what they want.
Tip 2: Learn to be flexible
Making comics is a long term endeavor. Be prepared to change things as you go. Don't get too tied up with a picture, because it might not line up with the writer's vision. I suggest having two options in mind, and providing alternate takes on a panel when you can.
Secondarily to this, it's important to be always learning new things regarding your craft. Having more tools at your disposal makes you more flexible.
Tip 3: Be patient
Last one. As I mentioned before, comics is a long game. Not every single panel you draw will be perfect. Sometimes you may not see eye to eye with your writer. And other times, you may feel like you're not able to make even one line.
Have mercy on yourself, and take some time to get your wits together. Have mercy on your writer, work with them until you solve the problem. Take a breath, and keep pushing on when you're ready.
I hope this was interesting to read, and helpful in some way. And at the very least, now you've seen a different perspective on comics. Hope you enjoy everything to come!