anything wrong with my set up?

[Bartman]

I just got a kenyan sand boa from the show and ive followed care sheets but i was just wondering if anyone can see something im doing wrong.

(pics down)
Using a ten gallon tank
Screen lid
50 W bulb that gives a 90 basking zone
sand substrate of about 2 inches- ive been advised to change but to what?
snake dish
two pieces of cork bark on each end
some decoration plants

the snake is about 6 or 7 inches long.

My other question is how to feed these guys. Should i dangle food or should i leave it. Should i take them out to feed, if i do and use a rubbermade or something do i dangle or leave. Should their be anything on the bottem?

How long do you think it will take him to settle in and eat..and should i still try every week?

thanks!

edit:

oops forgot a pic and yea snake dish water dish..just the ones like for snakes..not the potting plant thingy's