Regarding the three Arhopalas,
The first one is either a very worn out specimen of the muta group or a species with naturally indistinct markings. At first I thought it was the endemic Arhopala alica but that species has metallic blue scales at the tornal area of the hindwing.
Second one is Arhopala agesias from the size and configuration of the spots.
No idea about the third one. It looks exactly like normani but the forewing post-discal band is dislocated and the hindwing has an aberrant-looking irregular-shaped closed spot in the middle of space 2 below the cell. It might be Arhopala milleri or evansi.
Also the butterfly in your profile pic is Graphium stratiotes, which I think is quite uncommon and also a Bornean endemic.