It's not bad. Take Five has plenty of room to spread out. I know it's unfair to use Rudess as a measuring stick, but I thought some of his best playing in An Evening With Rudess and Petrucci was his accompaniment of Petrucci during Hang 10. He was clearly taking a back seat and sticking pretty close to the theme, but he really broke out some nice but subtle grooves.
On the other hand, I rather enjoyed Growth and Learning. You've got a nice ear for music. I'd rather hear you develop some of your own themes.
Charles Minugs recorded an album of him playing piano improvisations. You should check it out. Similar in style to what you're doing.