so far, this is good. i have driven a 530 a few times, so i have some suggestions 1. the hopper lid you used is usually on higher end models (580 for example). the 530 has what is called hawk lid. you can find pics of it online if you want to make an accurate reproduction 2. i like that the pto for the header is animated. but you still need to connect it from the removable shaft to the rest of the pto for the header 3. the cab is well done for an alpha, but maybe push the perspective a little forward. right now, it looks as if you have a nosebleed in the seat 4. the s600 autocontour is seldom used afaik, just use a c600, perhaps without laser pilot