You've really gone overboard on the bolts on the tire. I'd remove all of them except for 4-6 on the actual hub cap; there shouldn't be any on the tire itself.
Thanks guys! Design, modeling and texturing is all my work. Design is combination of various sources of inspiration. From Wild west 6-shooters to Anthem weapons.
Just wanted to post another site I found, that might help others as well. Especially for me, the section 6 seem to be helpful. http://ctrlpaint.com/library/