BMX and MTB Change Into a Simple Recumbent Bike

I tried to combine two old bikes, BMX and MTB. The combination makes the bikes into a recumbent bike.

Step 1: Cutting the Frame

Cut the MTB frame into smaller one.  Joint the frame into smaller.

Step 2: Welding and Joint the Bikes' Frame

After grinding the frame (removing the paint) it can be welded.

Step 3: Finalizing

But it still needed other parts to improve my simple recumbent bike.