Can't really tell anything much from that pic, tho it appears that white foot may be slightly higher heeled. You can learn what is required of pics for hoof critique at Good Hoof Photos - How to take Good Hoof Photos
That ring where the growth changes angle could be due to extra stress to that foot 6 months ago(or whenever that point was growing from coronet), but it appears that there may be lesser rings from the same period on the other feet, so I'd think it's likely a dietary lami occurence that happened then, slightly worse on the white front because that toe's under a bit more stress.
'Club foot' means feet are more upright/boxy, but particularly one foot over the other of a pair. Of course horses don't have perfectly identical feet, but if it's a noticable difference and not apparently due to bad trimming or such, farriers often call this 'club foot'. This may be due to innate imbalance in the horse when born, but is often due to injury or sometimes imbalanced trimming. Of course, if one leg is actually slightly shorter than the other or such, there is really nothing that could or should be done about making them a matching pair. If it's due to injury or other body imbalance, it *may* be changeable, if the body issue can be resolved. You will find some good articles on heel height and club foot(among a HEAP of other great info) at Pete Ramey writes about white line disease thrush navicular disease hoof balance
As for TBs going barefoot, success of this comes down predominently to deed rather than breed - eg. environment, management, diet, etc, etc. TBs are no more likely to have probs bare generally than other breeds. However, there are also a heap of great hoof boots on the market these days, so it's not a question of only shoes vs bare at all. Most horses, particularly if straight out of shoes will have problems, at least on some surfaces bare, and need protection. Boots are a much healthier option to conventional metal shoes(not to mention cheaper) and with the range there is now, are generally suitable for whatever the horse & situation. You'll learn more about the factors & principles of this too at hoofrehab.com, among many other good sites. It's so important to educate ourselves on this, regardless whether you choose to shoe or not.