Firstly, check to see if there's nothing that has fallen down behind the piano or is touching the soundboard at the back of the piano. Small objects, mains flexes and discarded sheet music stuck behind a piano can have a detrimental effect on the tone of a piano, especially on a small instrument.
The pictures show a piano of modern or new construction which has been badly set-up. The checks (wooden with green felt) are not aligned with the balance hammers (small leather covered part) in the lateral plane. This will not present problems immediately and is not related to the piano's poor tone, but will cause uneven wear in the action. It is easily rectified by a decent technician, similarly the hammer spacing. The hammers look to have only minimal wear but appear of decidedly average quality.
The sound is indicative of two things:
Firstly, it's out of tune.
Secondly, the hammers sound generally too hard in a way that is often caused by "doping" a hammer that was once too soft. Most cheap uprights made in or destined for the USA are constructed in this manner; cheap fluffy hammers with little resilience are treated with a dope to harden them. Then if you're lucky a technician at the factory will try a bit of voicing of over-hard hammers, but usually not. A decent technician may be able to improve things, but it sounds to me like a bad American-market piano. It may be that a previous tuner has "doped" them (sometimes referred to as "lacquering" or "juicing") in which case I'd sue.
Can you let us know what the make of this piano is? I'd guess a US brand, or a 10-year-old-plus cheap Korean or Chinese piano. Pianos from the Far East are so much better now!
Try a good tuner and get him to sort out the voicing and regulation adjustments. If this is fruitless, buy a nice new Yamaha!
Good luck!
PG