Haha, it's way better than my first bases. Looks good! The only thing I might suggest, that many others may as well, is to dig a moat around your fencing when you're able to. That way it'll keep melee creatures away from the wall, and lower the need to repair them in the event of a raid. (In case you didn't know, your base can be raided at any time by various creatures.)

I don't even build advanced enough to warrant support beams in my current game's main base. Just a floor, walls, some windows, a chimney-type structure for the food racks to not suffocate me, and a second floor with a roof over it.

Honestly, as long as I've had the game and as long as I've played, I never knew support beams were even warranted in some situations until just the other day when I discovered what the coloration of tiles meant when building.

Needless to say, I eventually intend to massively overhaul my main base to make room for a grand hall with a separate area for the crafting stations.. so I'm going to have to learn how to build all over again after razing the land of any and all trees for the wood it'll require.