thanks all for the constructive feedback...
on 1, was actually lying in a bush at the time, hence the green tinge on the tree on the right and the odd looking vignetting...in hindsight, using the leaves was probably a bad move as they were too close to the camera to give the effect i was after...
on 2, yep could crop closer, like the rider on the left, may be if there was more dust, the shot would have balanced more...didn't spot marshal on the right, usually am a stickler for them
on 3, agree not the sharpest, but for me a standout shot...and looked great on pinkbike's homepage..is a little yellow, but wanted to bring out the contrast of the depth of the sky against the bare earth...trying to change deepest Kent into somewhere more exotic
on 4, great spot on the light flare
on 5, makes a great desktop background
will post the settings for the shots later
JB