The tear out could be turned into a cockpit, ala those cartoon rocketships.

As for the glue up, maybe you could make a block of sacrificial wood to sit in the middle of the fins (below the butt of the rocket) to help give them stability so they don’t fold into each other.

Loving the updates!

I like the size and ratios.

If you don’t fill the cutout, it could be a window.

Wood filler or fine sawdust slurry mixed with glue. Fill it and sand it.

Everytime I see one of your posts, my brain rejects that you're in the process of making a rocket and is instead fully committed to the idea that you're just a very creative vampire hunter, who got bored with making conventional stakes.

Surgical tubing can be wrapped around uneven surfaces and will provide a lot of pressure. I've seen it used in guitar repair. Works well on lotsa stuff. Might need dowel pins or maybe nails/screws to stabilize.

Put a fin in a vise. Clamp the fuselage to the vise.

Don't over clamp and press all the glue out.

oh so its not a dildo

Interesting chair. Very ergonomic.

Paint it red and white chequered

Dowel pins.

Seeing this take shape, I'm reminded of this video by Atomic Frontier about emoji rocket shapes: https://nebula.tv/videos/atomicfrontier-which-emoji-makes-the-best-rocket/

And on YouTube as well: https://www.youtube.com/watch?v=9Pn0rHTpwvo

reminds me of the hugo award statue!

as far as clamping - I'd create a spacer jig via 3d printing.... you could do the same with scrap wood if you're confident in getting the angles right but should be simpleish

I'd say rubber bands or tape are your best best. Or both.

Did you fingerjoint another species on the bottom there?

I think your proportions are right. I'd take it down as little as possible to fix the tearout.

Nice work!