Hello,
If you can reach the recovery mode and the download mode, your phone is definitely not bricked.
In case you need, you could use this HOWTO (TWRP is already installed so you can directly read the parts after this step) to do a manual installation.
But before this, I suggest you to enter into TWRP (the recovery mode) like you did, and go into Reboot > System.
If the e logo doesn’t shows up and you are still facing the bootloop, enter in TWRP again and go into Wipe > Format Data > type “yes” and enter > Reboot System > Do Not Install.
If it doesn’t work, then /e/OS isn’t installed correctly and you will have to download it and install it manually as stated in the HOWTO I shared above.