[cypher]

Neither of your hams are particularly large, Syrian weights vary a lot so there isn't really an average or any way to say what weight may be right for someone else's ham without seeing & handling it tbh.
Weight isn't the only issue though, you have to think of overall health.
Do you mean you are feeding them just that home made mix? They really need a good balanced diet that will provide all the nutrients they need to remain healthy & for that unless you are experienced in hamster nutrition & prepared to do a lot of calculations needed to create a good diet you should stick to a good commercial food mix in addition to a good variety of veg (not just one or two things) daily, the odd extra now & then is fine but that should be the main part of what they eat.