it\'s better quality painting than i could do but the only major concern i\'d have that hasn\'t been mentioned is your painting of your main colour on to what should really be metal like part of the engine (admittedly there will be covered by the rider), the trim around the tank (this is more personal choice as it could really be any colour but always nice to see them vary like with marine shoulder pad trims to give a contrasting look), where the tsnk is mounted as this would reallistically be part of the bike frame , the front forks admittedly the block colour where it connects to wheel would be good but i\'d have the circle on that part metal just to match up with the wheel and it may not come out to good but that\'s more the shaping on GW\'s blocky sculpt for it than your painting skills
i suppose it is possible to have a lot of the areas i\'ve mentioned painted but in reality these areas would show a lot of battle damage effects if you are going to use them as the front forks would have straight scratches from shocks and the painted engine parts would bubble and blister from the heat and start to give off that blued steel/scorched metal look too
oh and if you do that rememer to wreck the foot pegs beyond belief as those chunky things would get scraped up to shit the first time the scout leans into a sharp corner
and speaking of them leaning into a corner you may want to green stuff some knee sliders on to the rider as the material trousers they are modelled as wearing would be torn up maybe just using the shaping of a space marine armoured knee and scraping in a design for some strapping around the back of the knee or just a raised effect around the slider to show it being stitched under the material just to give you an idea this is an r&g titanium knee slider these ones are more than likely fastened by velcro patches
i guess if you wanted to be more fluffy cybernetic legs would be the way to go because if the model scout was actually to use a bike they supposedly do their knee joint would have torn off or possibly mangled their whole leg under the weight of those bikes after their first spill in learning to handle the bikes let alone in combat
but this is just me bitching about a shitty sculpt painting looks great though