The biggest thing that stands out to me visually is your arms.
You're current arm setup is kind of in between what we see as the normal arm configurations of the time. It seems like most common at this point in time from effigies is just a mail arm defense. Some guys are lucky enough to have a full floating plate arm harness over their mail. But what I don't see is a stand-alone articulated shoulder defense with no upper arm defense and a stand alone vambrace. The most common configuration I see of guys who are starting to supplement mail with plate (which is what I think you're going for) is a simple elbow cop or rondel at the elbow, and just a rondel at the shoulder, not a full articulated shoulder like you're wearing.
The easiest thing to do to visually correct your arms is to either remove the plate altogether, or just wear your elbow cops, and see if you can take the besegue off your shoulders and just wear it as a rondel on the shoulder instead.
The other big thing I see is that you should ideally have a full hauberk on, with full sleeves. Hands should ideally have maille mittens or possibly visby style segmented gauntlets.
The plate for your legs look pretty good. Again ideally you'd probably have maille on underneath your plate. There are several examples of men-at-arms with plate on their legs like yours but no plate on their arms, or just the pieces I recommended above.
Footwear's easy to fix. You can get inexpensive 'good enough' footwear from Viking Leather with the vibram soles. They make a great entry level period-ish shoe.
Also please keep in mind that DoK is a very worthwhile experience for newcomers to just do a soft-kit which can be had from a place like Historic Enterprises for a fair price and will pass DoK standards. Last year Doug came out for his first DoK and did soft kit only, and I think he'll tell you it was still very much worth it.
But if you do want to bring the hard kit up to snuff I think re-configuring your arms would go a long way (and should be free!). A hauberk would really go a long way too and would cover you for torso defense, arm defense, and technically even upper leg defense. Lower leg plate bits are good to go. Replace your shoes. If you don't want to wear your sugarloaf then a coif would be the most inexpensive head defense, but if you're going for 1330 you could probably still wear a sugarloaf (not 100% sure).
Honestly though as far as Living History goes, the DoK
standards are not very restrictive. You could probably come in your kit exactly as is and it wouldn't be turned away, but if I were in your shoes I would make my best effort to at least fix the visual since the primary goal of a timeline event is education. Once we start having to explain away all of our kit to the public (or worse, aren't even familiar with what's wrong with our kits) then we begin to defeat the purpose of an educational historical timeline event.
The most important thing you can do, is whichever route you choose to go, you should attend DoK either way! For selfish reasons, I'd like to finally meet you, and secondly you will really gain a lot of experience and see if LH is something you enjoy. DoK is a great place for someone new to the idea of LH to see if it's for them.
