Updated 12/12/2018

• Add a version of jungle trees with lowered height/removed bushes for the Rainforest/Tropical Rainforest (And remove the existing ones).

• Replace the oak leaves/logs on the conifer trees in the Temperate Rainforest with redwood leaves/logs (But keep that tree model).

• Add thinner (2x2 and 1x1) redwood trees to the Redwood Forest and Redwood Forest Edge (Remove 3x3 redwood trees from the edge biome).

• Improve canopy of redwood trees to better match the ones in BOP, and remove the bushes from the sides of the trunks.

• Added birch shrubs (Similar to the shrubs in the Chaparral) and dark oak trees (Identical to the dead trees with sparse leaves) to the Fen biome.

• Add dark oak shrubs (Similar to the shrubs in the Chaparral) to the Bog biome.

Also noticed some weird giant mushrooms along the edge of a Dead Swamp:

FIXED

Those mushrooms might be my problem. I'll look into it. Thanks.

Thanks for making an issue for this, it's much cleaner than using a screenshot of a message on discord.
I've done some work on some of your suggestions, the others will take a bit more work, though.
Here's what I've done for alpha 2:

• Fir trees should have slightly more leaves, though they still need more work. I hadn't even realized how few leaves they had since I pretty much always use Better Foliage, even in my dev environment.
• Coniferous forests are more dense and have more large fir trees. They also no longer have bushes.
• Removed trees from marshes
• Made the willow trees have a slightly thinner canopy, and more willow vines.
• Reduced the tree density of lush swamps
• Increased the tree density of bogs
• Made palm trees taller, and more densely placed in tropical islands

And as for what I haven't done yet:

• I haven't removed vines from jungle trees in rainforests just yet because that would require adding another species of jungle tree, and although I do plan on doing that I'd like to hold off on it for the moment because I also want to make the jungle trees in rainforests much shorter, which will take a bit more work.
• Trees in lush swamps and willow trees still don't have enough vines, in my opinion. This is harder to deal with since I don't think the vine placement code in Dynamic Trees is capable of consistently creating decent amounts of vines.
• The bayou biome still doesn't have trees in water more than 1 block deep. Because dynamic tree trunks are often less than 1 block thick, I don't want to make them generate in the water until I'm able to make them render with water in their block-space. This is also the main reason mangrove trees aren't added yet.

By the way, the big mushrooms should be fixed in version 0.7.5b of Dynamic Trees.

The new Coniferous Forests look great! The new willow trees are much more swampy as well.

Only complaint is that the Lush Swamps are too sparse now :P I think the thing that was making it look too dense before was the "forest" feature Dynamic Trees has or whatever. I think the new Bayou's tree density would probably work for the Lush Swamp though.

Also nice to see the palm trees work with shaders now 👍

Noticed another issue. Oak and Birch trees seem to be generating in the Redwood Forest, which shouldn't be happening.

Also, the orange autumn trees should be using Dark Oak wood instead of regular Oak wood.

The lush swamp density was changed in the latest update to match the tree density of the bayou biome, hopefully it's better now.
The redwood forest thing was an oversight, I just forgot to disable default dynamic trees generation there since I hadn't added redwood trees yet. That should also be fixed in the latest release.
The orange autumn trees have also been fixed, thanks for pointing that out.

Just noticed that the Origin Island biome has dynamic oak/birch trees, which definitely shouldn't be happening.

Ah whoops. Same problem as the redwood forests. I'll fix this and check the other biomes that aren't supposed to generate dynamic trees.

The latest release should prevent dynamic trees from generating in all BOP biomes that aren't supposed to have trees, or haven't had their trees replaced. It has also been updated to work with the latest releases of BOP.

Nice. Also, forgot to mention that I recently changed the types of trees that generate in the Prairie biome to the sparse tree without many leaves (Like the ones in the Wasteland that still have leaves on them, but with oak leaves/logs), as well as making them less common in the biome.

I just updated the opening post with a list of requests/fixes to better suit BOP. Figured it's better than trying to keep it all on Discord :P