Home Audio Preamp What Do You Think Of This Home Studio Set Up?

What do you think of this home studio set up? - home audio preamp

I'm on a budget, the quality at low prices and decent like. I am building a studio at home for the first time I have FL Studio 7 and I built a team of monsters. I have information on equipment below before buying and recommending specify additional devices. Thank you!

Sony Pro MDR-7506 headphones - Sony

M-Audio Studiophile AV 40 speakers

M-Audio MobilePre USB Mobile Preamp and Audio Interface

M-Audio Keystation 61es Keyboard 61 Keys

PADCONTROL Korg KORG USB DRUM PAD CONTROLLER