Yes Jesus should be on the cross.
1 Corinthians 2:2 For I decided to know nothing among you except Jesus Christ, and him crucified.
1 Corinthians 1:18 For the message about the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.
Galatians 6:14 May I never boast of anything except the cross of our Lord Jesus Christ, by which the world has been crucified to me, and I to the world.
John 17:17 Sanctify them in the truth; your word is truth.
1667 "Holy Mother Church has, moreover, instituted sacramentals. These are sacred signs which bear a resemblance to the sacraments. They signify effects, particularly of a spiritual nature, which are obtained through the intercession of the Church. By them men are disposed to receive the chief effect of the sacraments, and various occasions in life are rendered holy."173
The characteristics of sacramentals
** Sacramentals are instituted for the sanctification of certain ministries of the Church, certain states of life, a great variety of circumstances in Christian life, and the use of many things helpful to man. In accordance with bishops’ pastoral decisions, they can also respond to the needs, culture, and special history of the Christian people of a particular region or time. They always include a prayer, often accompanied by a specific sign, such as the laying on of hands, the sign of the cross, or the sprinkling of holy water (which recalls Baptism).
** Sacramentals derive from the baptismal priesthood: every baptized person is called to be a “blessing,” and to bless.174 Hence lay people may preside at certain blessings; the more a blessing concerns ecclesial and sacramental life, the more is its administration reserved to the ordained ministry (bishops, priests, or deacons).175
** Sacramentals do not confer the grace of the Holy Spirit in the way that the sacraments do, but by the Church’s prayer, they prepare us to receive grace and dispose us to cooperate with it. "For well-disposed members of the faithful, the liturgy of the sacraments and sacramentals sanctifies almost every event of their lives with the divine grace which flows from the Paschal mystery of the Passion, Death, and Resurrection of Christ. From this source all sacraments and sacramentals draw their power. There is scarcely any proper use of material things which cannot be thus directed toward the sanctification of men and the praise of God."176
1677 Sacramentals are sacred signs instituted by the Church. They prepare men to receive the fruit of the sacraments and sanctify different circumstances of life.
1678 Among the sacramentals blessings occupy an important place. They include both praise of God for his works and gifts, and the Church’s intercession for men that they may be able to use God’s gifts according to the spirit of the Gospel.