Hello, again...
ptoing: thank you for the edit...
fil_razorback: Thank you for commenting... The transition between floor and walls was quite troublesome, i should admit... I finally decided to put some shading but don't know if it works... About the 'techy' lines, i didn't want to anti-alias them because that would give them a third dimension which i didn't like since they're just patterns on the floor... Still, i decided to add some more lighter ones just for the variation you proposed...
So here's my edit...
May the Force be with us...