Looking out shouldn't be TOO much of an issue, mine does that and it actually seems to entertain him to watch what's going on. These days he hangs halfway out of his hide, tucked into all the plant cover I have in his enclosure. Lets him come out and interact with the environment while also feeling secure since he's difficult to see through the leaves.

So, if you're not needing to insulate your tub, I'd say try getting some more cover options in the enclosure itself for now. Two well-fitted hides, and some cheap silk plant garlands to toss in there and simulate ground leaf cover over substrate.

Here's what mine looked like recently, for example: