Looks great!!!
Tank this size there should be lots of fun options for 'scaping methinks. That said, I hate aquascaping.
Mostly because I'm hugely fussy, but tend to really like what others can do and really hate what I can do. I'm sure everyone feels this way about their tank to an extent but it's *really bad* in my case.
Were this my tank, I'd probably go with bommies and ravines, and bommies the size that I had originally thought of for my 280 before I put them in the tank and realized how much too big they were for my tank, which was too bad because I really liked the shapes .... but anyhow it's your tank so don't listen to me and go with whatever vision you had in mind.